Need help with five algebra problems, please help:)?

Question

1.If the square of 2 less than an integer is 1 6, find the number(s).

2. Solar collector is 2.5m long by 2.0m wide. It is held in place by a frame of uniform width around its outside edge. If the exposed collector is 4m^2 , what is the width of the frame to the nearest tenth of a centimeter?

3. The length of a rectangle is 2cm more than 3 times its width. If the area of the rectangle is 95cm^2 , find the dimensions of the rectangle.

4. The hypotenuse of a given right triangle is 6 cm longer than the shorter leg. The length of the shorter leg is 2 cm less than that of the longer leg. Find the lengths of the three sides.

5. If a ball is thrown vertically upward from a height of 5 ft, with an initial velocity of 80ft/s, its height h after t s is given by . How long does it take the ball to return to the ground?

Answer 1

1) 4+2=6 these are not that hard. you need to give it a try.