The distance from the center of a round table top to the edge of the table top is 4 ft. what is the area of. the table top

Which describes the difference between the graph of f(x)=x^2 and g(x)=-(x^2-2)

One number is 4 less than 3 times a second number. if 3 more than two times the first number is decreased by 2 times the second number, the result is 11. use the substitution method. what is the first number?

I’ve been trying all day to figure this puzzle out. i need the work for it aswell. it is a factoring polynomials tarsia. the image is below.