3(x + 4). which expression below is equivalent by the distributive property?

3x+12
(3 + x) + 4
(x + 4) ⋅ 3
3x + 4

How do i do this activity, is appreciated

Carley bought a jacket that was discounted 10% off the original price. the expression below represents the discounted price in dollars, based on x, the original price of the jacket.

Onnie is considering doing some long term investing with money that she inherited. she would like to have $50,000 at the end of 30 years. approximately how much money would lonnie need to put into an account earning 6% interest compounded annually in order to meet her goal?