First solve the parentheses and you get 36+4 which is 40 and then subtract 15 so you get 25
Answer:
c
Step-by-step explanation:
Sinα=h/w
w=h/sinα, we are told that h=15 ft and α=70° so
w=15/sin70° ft
w≈15.96 ft (to nearest hundredth of a foot)
Do 8-15 =-7 and on the number line just move 15 places to the left from 8