Question

Hello! guys, please help me.

Answer 1

r < 12

Explanation:

Multiply both sides by 2 to eliminate the fraction.

9r - 18 < 90 ( add 18 to both sides )

9r < 108 ( divide both sides by 9 )

r < 12

Answer 2

x<12

Explanation:

9/2x-9<45

9/2x-9+9<+9

9/2x<54

(2/9)(9/2)<(2/9)(54)

x<12