Answer:
$45
Step-by-step explanation:
40% of 75 is= 30
subtract 30-75=
45!!!
$45 is you answer
∑ (n = 1 to 5) (2·(-4)^(n - 1))
S5 = 2·((-4)^5 - 1)/((-4) - 1) = 410
Angle of elevation would be 66 degrees
