Answer:
n is 20
Step-by-step explanation:
If n/8=2.5, then you can just do 8*2.5 to find n. 2.5*8=20
A² + b² = c²
30² + 72² = c²
<u />900 + 5,184 = c²
6084 = c²
(Square root both sides)
c = 78 m
<u />
5(2x - 4) = 45
5(2x) - 5(4) = 45
10x - 20 = 45
10x = 45 + 20
10x = 65
x = 65/10
x = 13/ 2
Thus, x is equal to 13/2
8 weeks
You’ll take 5 quizzes per week, so you divide 40 by 5
