Please help I'm really struggling here! Work out and estimate the mean time it took the students. Round your answer to 2 significant figures.

Which problem could be  solved  by evaluating the expression  7×(−3)7×-3?

The figures below are made out of circles, semicircles, quarter circles, and a square. find the area and the perimeter of each figure and give your answers as a completely simplified exact value in terms of π (no approximations).

What is the equation of the line in point-slope form? y+ 4 = 1/2(x+4) y-4 = 1/2(x + 4) y-0 = 2(x - 4) y-4 = 2(8-0)