Simplify the algebraic expression
6•4-12÷2+3(x-5)​

9(x-5)

Step-by-step explanation:

- First multiply 6 and 4

-Then subtract by 12

-Add 3

-Leave the variable and number that are in paranthese

b. astronomers

b is 38 degrees.

a is 52 degrees.

this is because if b is 38 and a is 14 degrees more than b than 38+14=52 and 52+38=90 degrees. hope this .