The function p(t) = 3•e ^ 0.0866t describes how to find the pollution level p(t) in relation to any time t, where t is the number of years after 1970. according to this information , what was the pollution level in 1980? round to the nearest hundredth
a. 7.13
b.2.38
c. 2.36
d.7.09

5/6+7/8what is the answer sealsdbdbshd

The first few steps in solving the quadratic equation 9x2 + 49x = 22 ? 5x by completing the square are shown. 9x2 + 49x = 22 ? 5x 9x2 + 54x = 22 9(x2 + 6x) = 22 which is the best step to do next to solve the equation by completing the square? 9(x2 + 6x + 3) = 25 9(x2 + 6x + 3) = 49 9(x2 + 6x + 9) = 31 9(x2 + 6x + 9) = 103

Atrain leaves little? rock, arkansas, and travels north at 90 kilometers per hour. another train leaves at the same time and travels south at 80 kilometers per hour. how long will it take before they are 680 kilometers? apart?