9(2m + 5n + 10)
Distributive Property

18m + 45n + 90

Step-by-step explanation:

You have to multiply whatever is inside the parentheses to the thing outside of it

like 2 x 9 is 18 so 18m

5 x 9 = 45 so 45n

9 x 10 = 90 so 90

18m+45n+90

Step-by-step explanation:

Multiply 9 by each term

9*2m=18m

9*5n=45n

9*10=90

since there are no like terms you don’t do anything.

Brainliest please :)

answer 24°

Step-by-step explanation:

two sides are equal so it is isosceles triangle

<BCE+90°+66°= 180

<BCE=24°

now,

<FCA=<BCE (vertical opposite angle)

<FCA=24°