Can someone please help me solve these two problems??? 6 and 8

Answer/Step-by-step explanation:

6. ✔️m<1 = 180 - (72 + 57) (sum of ∆)

m<1 = 56°

✔️m<2 = 90 - 72 (complementary angles)

m<2 = 18°

✔️m<3 = 180 - 57 (linear pair)

m<3 = 123°

✔️m<4 = 180 - (m<2 + m<3) (sum of ∆)

m<4 = 180 - (18 + 123) (substitution)

m<4 = 39°

8.(13x + 2) + (3x - 4) + (5x - 7) = 180 (sum of ∆)

13x + 2 + 3x - 4 + 5x - 7 = 180

Add like terms

21x - 9 = 180

21x = 180 + 9 (addition property of equality)

21x = 189

Divide both sides by 21

x = 9

walter needs to make at least 5 more cookies but no more than 40. 5 ≥ x ≥ 40;

step-by-step explanation:

walter has to make a minimum of 20 cookies. he already has 15 cookies made, so he must make 5 more to meet the minimum.

the maximum amount of cookies he can make is 55. he already has 15, so he has to make no more than 40 more cookies to meet the maximum.