10(h+1)-4=76 solve variable. include steps, also check your answer!

10h + 10 - 4 = 76;

10h + 6 = 76;

10h = 76 - 6;

10h = 70;

h = 70 ÷ 10;

h = 7;

Check: 10 · ( 7 + 1 ) - 4 =

10 · 8 - 4 =

80 - 4 =

76 TRUE

Step-by-step explanation:

answer: (c) m∠qpo + (2x + 16)° = 180°

step-by-step explanation:

the opposite angles of a quadrilateral are supplementary.

so, ∠o + ∠q = 180°   and   ∠p + ∠r = 180°

since ∠r = 2x + 16°, we can use substitution as follows:

∠p + ∠r = 180°

∠p + (2x + 16)° = 180°