H-j=4(h+j)-7 how do i get the answer for this? (solving for a variable)

John makes $10.50 pers hour what expression represens how much he will make if he works h hours

Solve each quadratic equation by factoring and using the zero product property. [tex]x^2+6x+8=0[/tex]

In 2009, there were 1570 bears in a wildlife refuge. in 2010, the population had increased to approximately 1884 bears. if this trend continues and the bear population is increasing exponentially, how many bears will there be in 2018?