What is the are of this triangle? How do you find the area if you don’t know the height to use A=1/2(b) x h

Ahigh definition tv cost $800 with a down payment of 2/5 of the cost. how much is left to pay, in dollars after the down payment has been made?

Write an inequality and solve each problem.for exercises 11 and 12, interpret the solution.

[15 points]find the least common multiple of the expressions: 1. 3x^2, 6x - 18 2. 5x, 5x(x +2) 3. x^2 - 9, x + 3 4. x^2 - 3x - 10, x + 2 explain if possible