Answer:
cumulus
Step-by-step explanation:
C is the answer
y = 12.3 cm
yw honey
-3
7x + y^2
subsitute
= 7x=7x-4= -28
=y^2=5^2= 25
-28 + 25= -3
20
using the law of exponents
× =
4 × 5
= (4 × 5 ) × ×
= 20