Write the following as an algebraic equation: Fifteen less than a number x is 6

Solve the equation 3x2 + 19x + 9 = 0 to the nearest tenth.

Segment xz is bisected by point y. if xy = 12x, and the measure of xz = 18x – 6, solve for x

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?