3x-0.4(5-2x)=5.6 how do i figure this out

Which value would be a solution for x in the inequality 47-4x< 7

Atemperature of 1.64◦f corresponds to answer in units of ◦c.

Circle a has a diameter of 7 inches, a circumference of 21.98 inches, and an area of 38.465 square inches. the diameter of circle b is 6 inches, the circumference is 18.84 inches, and the area is 28.26 square inches. part a: using the formula for circumference, solve for the value of pi for each circle. (4 points) part b: use the formula for area and solve for the value of pi for each circle. (4 points)