ZA and ZB are vertical angles. If m A = (2x + 7)º and m B = (5x + 16), then find the measure of ZB.

What is the equation of a parabola y(x) that has a vertex at point (− 1/3 , 0.3) and passes through point (− 2/15 , − 1/2 ).

What is the rescursive formula for this geometric sequence? 7, -14, 28, -56

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?