The answer is D if you count both of the long sides it will give you 21 each and 5 on the short side so that would give you 47 is the preimeter so D is the closest.
It is step 2 because the student did not multiply 10 correctly...
They put -10 but 10×(-2) is actually -20.
Answer:
2
=3
Step-by-step explanation:
yes
Answer:
16 years old.
Step-by-step explanation:
(24+24+15+16+19+X) / 6 = 19
(98 + X) / 6 = 19
98 + X = (19)*(6)
98 + X = 114
X = 114-98
X = 16