HELP how can south Korea improve or sustain a high living standard while ensuring a healthy climate?

Write the summation to estimate the area under the curve y = 1 + x2 from x = -1 to x = 2 using 3 rectangles and right endpoints

Rewrite 9 log, x2 in a form that does not use exponents. 9log, x = log, x

Math question.. plz me .. best answer all