The equation y = 35.25x + 40 gives the labor cost y of repairing a car if takes x hours to repair the car.

according to the model, what is the best estimate of the labor cost if it takes 6 hours to repair a car?

$251.50
$211.50
$81.25
$41.25

School has 204 sixth grade students. if the sixth grade is 30% of the total school, how many students are in the middle school?

(05.02)a farmer has decided to divide his land area in half in order to plant soy and corn. calculate the area of the entire area so he knows how much soil is needed. a parallelogram with a height of 6 yards and side length 9 yards. the height forms a triangle with the slanted side of the rhombus with a base of 2.5 yards. rhombus is split into a soy half and a corn half. each bag of soil covers 40 square yards. how many bags should the farmer purchase?

Math i have no idea how to do a and b