Niu earned $312 on an investment of $800. How much would $1100 have earned in the same investment?

Is the power produced directly proportional to the wind speed, give reasons for your answer?

An airplane travels at an unknown elevation before it descends 3 miles to an elevation of 15 miles. find the elevation of the plane before its descen.

Plot a point at the y-intercept of the following function on the provided graph. 3y=-5x+7 20 points