Expand and simplify 5(2a – c) + 4(3a + 2c)

22a+3c

Step-by-step explanation:

22a + 3c

Step-by-step explanation:

Let's simplify step-by-step.

5(2a−c)+4(3a+2c)

Distribute:

=(5)(2a)+(5)(−c)+(4)(3a)+(4)(2c)

=10a+−5c+12a+8c

Combine Like Terms:

=10a+−5c+12a+8c

=(10a+12a)+(−5c+8c)

=22a+3c

i think it is everything has to equal 180 so, if i correct 4=c. 6=d. 8=a. 7=b. and the last question would be c. because they are parallel lines and they are congruent.

step-by-step explanation:

the reason everything has to equal to 180 is because that is how it works. i'm guessing that is its rule. 4 and 8 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 6 and 7 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 60+60 is 180. so, now you have your answer

sorry i just need to anwers this to get points

step-by-step explanation: