3x - 18 = 42
3x = 42 + 18
3x = 60
x = 60/3
x = 20
The equation for a trapezoid is A = a+b all over 2 times h
So, you would simply substitute.
A=15
B=12
H=8
15+12/2 (8)=
27/2 (8)=
13.5 (8)=
108.
i need the ancwer options and the linea
Answer:
Step-by-step explanation:
15 is you answer sir. the multiples are 15,30,45,60,75<span>,90,105,120,135,150,165,180,195,210,225,240,255,270,285,300,315</span>
