Explain, in words, how to find -4(-1.5) using a number line. where do you end up?

If 1/√5+1/√5+1=p+q√r , find the values of p, q and r

Does anyone know how to solve and graph this: 4 + | a + 2 | < 7the only part i don't get is the "4 +"

Adesigner charges a one time fee of $200 plus $40 an hour for each project. write an expression to represent how much money the designer will make for a project