Needing of help with this

30

Step-by-step explanation:

angle 2 and angle 1 have to equal 180 degrees

angle 2 is (3x-8)

since angle 3 is (4x-22), then angle 1 is also

set up your equation

(4x-22)+(3x-8)=180

solve for x

7x-30=180

  +30 +30

7x=210

divide by 7

x=30

:)

just do 5.2 + 2 ( 7.2) and 1/3 x 3 (.9) and youv'e got your equation. 0.9( 9/10) + 7.2 ^2 = 16.4 hope i could !

step-by-step explanation:

if a = 1,   and b = 2, then the answer is 47.99999999. if you round that to the nearest whole number, the answer is 48.