Elsa is as old as Megan will be 5 yrs
The difference between Ed’s age Megan is the difference Elsa age Megan’s age
Ed is 29
How old is Elsa ?

What is the simplified expression for 6(2(y+x))

Element x decays radioactively with a half life of 8 minutes. if there are 450 grams of element x, how long, to the nearest tenth of a minute, would it take the element to decay to 37 grams?

In trapezoid efgh, m∠hef=(4x2+16)∘ and m∠gfe=(5x2+12)∘. find the value of x so that efgh is isosceles.