What is the slope of the line that passes through the points (1, -6)(1,−6) and (-8, 9) ?(−8,9)? Write your answer in simplest form.

Aswimming pool had 2.5 million liters of water in it. some water evaporated, and then the pool only had 22 million liters of water in it. what percent of the water evaporated?

If tan2a=cot(a+60), find the value of a, where 2a is an acute angle

Sketch the vector field vector f( vector r ) = 8vector r in the xy-plane. select all that apply. the length of each vector is 8. the lengths of the vectors decrease as you move away from the origin. all the vectors point away from the origin. all the vectors point in the same direction. all the vectors point towards the origin. the lengths of the vectors increase as you move away from the origin.