Answer:
210 mm^2
Step-by-step explanation:
Hope this helped
Answer:
1 point
Step-by-step explanation:
Answer:
A, C, and E are correct
Step-by-step explanation:
B can't be right because 2 is an exponent, not a coefficient
D can't be right because 6 doesn't go into 7
Hope this helped!
Answer:
m<N=70 degrees
Step-by-step explanation:
Answer:
81
Step-by-step explanation:
9*(x + y) = 10x + y
9x + 9y = 10x + y
0 = x - 8y
8y = x
=======
y = 1
x = 8
x + y = 8 + 1 = 9
9*9 = 81
So 81 is 9 times the sum of it's digits.