4(5-2x) - 21 + 7x
Distribute and Combine like Terms.

Step-by-step explanation:

20 - 8x - 21 + 7x

-x - 1

answe: it will take 4.5 hours for naomi and clair to paint an equal number of square feet

hope i

-lavira : )

180°

step-by-step explanation:

sum of equilateral triangle=180°

< n=60°

< m=120°°[angle supplementary of equilateral angle]

< m+< r+< x=360°(sum of exterior angle of triangle)