Sean's mom asks him how long his homework will take. He tells her that he needs to read of 25 minutes and also do some math problems that will take m minutes. Altogether, his homework will take h minutes. What is the independent variable?

If a and b are the measures of two first quadrant angles and sin a = 4/9 and sin b = 2/5 find sin(a+b).

Iam trying to solve a linear equation for the shoe size of someone 84" tall taking into consideration example 1 is 69" tall with a shoe size of 9 and example 2 is 72 inches tall with a shoe size of 11. i understand that the equation should be y=mx+b and that on the graph the answer is (3,2) but i just don't understand how to create the equation to solve for 84-inches and 60-inches tall questions. after two days, i need .

Rationalize the denominator- 12x/√x-10