Pls

a boy swims downstream 0.9 miles in the same amount of time that he can swim 0.6 miles upstream. if the rate of the current is 1.5 mph, how fast can he swim in still water.
a. 0.2 mph,
b. 0.75 mph, or
c. 7.5 mph

The triangle shown has a hypotenuse with a length of 13 feet. the measure of angle a is 20 degrees. and the measure of angle b is 70 degrees. which of the following is closest to the length, in feet, of line segment ac? no need to use a calculator to find the trig numbers. each function is listed below. 4.4 5 12.2 35.7