Shoshanna creates a volcano model. the volcano sits on 7 4/5 pounds. the entire model, including the board, weighs, 12 1/2 pounds. how many pounds does shoshanna’s model weigh? Please help

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