A formula for calculating A, the area of the trapezoid, A= 1/2 (b + b), where h is the height of the trapezoid, and b and b are the lengths of parallel sides. What is A when h = 4 centimeters, b = 10 centimeters, and b = 5 centimeters?

16. you're planning to buy a boat, a motor, and some miscellaneous boating equipment. the boat costs $325, the motor costs $225, and the equipment costs $79. if you've saved $438 toward these purchases, how much more do you need to save? a. $181 b. $281 c. $291 d. $191

Name each raycalculation tip: in ray "ab", a is the endpoint of the ray.

The u-drive rent-a-truck company plans to spend $13 million on 320 new vehicles. each commercial van will cost $25 comma 000, each small truck $50 comma 000, and each large truck  $80 comma 000. past experience shows that they need twice as many vans as small trucks. how many of each type of vehicle can they buy?