What is the area of a square of 12 and four semicircles. Rounded to the nearest tenths place

Will give brainliest summations with algebraic expressions image shown

There is a spinner with 14 equal areas, numbered 1 through 14. if the spinner is spun one time, what is the probability that the result is a multiple of 2 or a multiple of 5?

Solve the equation for x.3(6x - 1) = 12 i've tried doing the math and i can't find out what i'm doing wrong