Write an equivalent expression for n x a using only addition

F(x) = (x^2 + 3x − 4) and g (x) = (x+4) find f/g and state the domain.

Askateboard ramp is in the shape of a right triangle what is the height of the ramp

Serena is making an experiment. for that, she needs 20 grams of a 52% solution of salt. she has two large bottles of salt water: one with 40% and the other with 70% of salt in them. how much of each must she use to make the solution she needs? i am in need of