Simplify (6x^2 -3 + 5x^3) -(4x^3 -2x^2-16)

Which is greater, 7 p 5 or 7 c 5? 7p5 7c5

Which equation can be used to measure the density of water in a spherical water tank? let w represent the number of water particles within the region.

Ben frank is an electrician who installs lighting fixtures. he charges (in dollars) his clients 15h+40f15h+40f where hh is the number of hours worked and ff is the number of fixtures installed. how much does ben frank charge when he works 77 hours and installs 99 fixtures?