78, because you have to do the inverse operation so 80/2= 40 then 40-1= 39 and 39*3 = 78
V=(7*6)/2 *8 the third option
you multiply the height with the base of the triangle and you get the area of the base of the prism so you multiply it with the height of the prism to get the volume
Answer:
Heidi, Lisa, Jaydie, and Martina
Step-by-step explanation:
16%, 16%, 18%, 20%
Idk I really did not study this since I’m in AP
Answer:
C
Step-by-step explanation:
C is the answer because a1=7 , d=-4 and so it's
an=an+(n-1)d
