Uis has 3 loads of clothes to wash and dry. If each load takes 3 quarters for the washer and 2 quarters for the dryer, how many quarters does Luis need? Add the number of quarters needed to wash and dry one load. Then multiply the sum by the number of loads. Which mathematical problem matches the first step?

The function a represents the cost of manufacturing product a, in hundreds of dollars, and the function b represents the cost of manufacturing product b, in hundreds of dollars. a(t) = 5t + 2 b(t) = 7t - 2t +4 find the expression that describes the total cost of manufacturing both products, a(t) + b(t). a. 7t^2 - 7t + 2 b. 7t^2 + 3 +6 c. 7t^2 + 7t - 6 d. 7t^2 - 3t + 6

The area of a rectangle is 10 cm^2. one side of the rectangle is x cm. express the perimeter of the rectangle in terms of x and show that this rectangle cannot have a perimeter of 12 cm. the perimeter of the rectangle in terms of x is __ cm

In the sixth grade 13 out of 20 students have a dog if there are 152 sixth grade students how many of them have a dog