2) find the value of a.
(40-4) (2a + 30)

3) find the value of x
(5x-19) (3x+2)

v = 1/3 a^2h

step-by-step explanation:

the volume is 1/3 a^2h.

for me what is finding a good play list and going out because i can not lay down and relax so i usually go to a coffee shop. i also use the gum trick and this actually works. another advice is highlighting subjects it really does me remember certain things

step-by-step explanation: