what is 38/50 as a and what is 28/50 as a decimal? me i hate struggling with homework!

Write as a product of two polynomials. 2(3–b)+5(b–3)^2

Miguel has one foot of string. he cuts the string into fourths. how many inches is each piece of string?

The path traveled by a bottlenose dolphin as it jumps out of water is modeled by the equation y=-0.4+3x, where t is the height above water and x is the horizontal distance in feet. if a beam of light is shone upward at an angle modeled by the equation x+y=10, at what height from the waters surface will the beam of light hit the dolphin