Jack is 4 times as old as lacey. 7 years ago the sum of their age was 61. how old are they now?

Factor the expression using gcf 9b+45

The graph of f(x) is obtained by reflecting the graph of f(x)=-3|x| over the x-axis. which equation describes f(x)? a) f(x)=3|x| b) f(x)=|x+3| c) f(x)=-3|x| d) f(x) = - |x+3|

Find all the angles that satisfy the equation cos(θ)=32