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Questions in Grade Middle-school

[Open]Justin bought a 20-pound pumpkin for $9.80. How much did he pay per pound?

[Open]Of the new calculators tested, 8 were defective and 42 passed inspection. What ratio compares the number of defective calculators to the number of new calculators?

[Open]How has Arabia's "crossroads" location affected its culture and society?

[Open]At a putt-putt course, there are 50 yellow golf balls, 45 red golf balls, and 65 blue golf balls. What ratio compares the number of blue golf balls to the total number of golf balls?

[Open]Dora drove east at a constant rate of 75 kph. One hour later, Tim started driving on the same road at a constant rate of 90 kph. For how long was Tim driving before he caught up to Dora? Here is the correct setup: Name | D (km) | R (kph) | T (hr) | -----|--------|---------|--------| Dora | d | 75 | t | Tim | d | 90 | t - 1 | The equation is set up as follows: \[ 75t = 90(t - 1) \] Solving for \( t \): \[ 75t = 90t - 90 \] \[ 75t - 90t = -90 \] \[ -15t = -90 \] \[ t = 6 \] Tim was driving for 6 - 1 = 5 hours before he caught up to Dora.

[Open]Sean is helping his dad build a tiled walkway in their backyard. The walkway will be 60 feet long and 2 feet wide. The local hardware store sells tiles which are 2 by 2 feet and come in boxes of 6. How many boxes of tiles do they need?

[Open]Solve each equation: \[ 68 = \frac{r}{4} \] Provide a detailed solution.

[Open]What factors caused the slave trade to grow? How did this affect conditions on the Middle Passage?

[Open]The MoviePlex theater sold 1,456 tickets. The theater sold 6 times as many regular price tickets as it sold discount tickets. Earl says that the expression 1,456 divided by 6 gives the number of discount tickets. Is Earl correct? If not, write the correct expression and explain your answer.

[Open]What proposal did Richard Henry Lee make to Congress?