10. Find the height h of the parallelogram.

A 21
B 12
C 15
D 18

Ateacher has $80 to buy workbooks. each work book cost $3. if she buys as many workbooks as possible, how much money does she have leftover? a) $2 b) $4 c) $6 d) $8

An equation of the line tangent to y=x^3+3x^2+2 at its point of inflection is

Can someone me with this problem i don't understand i need