Given a sphere with radius r, the formula 4ttr2 gives . A. the volume
B. the surface area
C. the radius
D. the cross-sectional area​

In trapezoid efgh, m∠hef=(4x2+16)∘ and m∠gfe=(5x2+12)∘. find the value of x so that efgh is isosceles.

If abcde is reflected over the x-axis and then translated 3 units left, what are the new coordinates d?

Frank is lending $1,000 to sarah for two years. frank and sarah agree that frank should earn a real return of 4 percent per year. instructions: a. the cpi (times 100) is 100 at the time that frank makes the loan. it is expected to be 113 in one year and 127.7 in two years. what nominal rate of interest should frank charge sarah?