Negative one times the sum of twice a number and 3 is equal to two times the diffrencebof -4 times the number and 3.what is the number?

Celeste wants to have her hair cut and permed and also go to lunch. she knows she will need $50. the perm cost twice as much as her haircut and she needs $5 for lunch. how much does the perm cost?

Solve the following inequalities and show the solution on a number line. 2x+3< 3(4x+5)

The interior angles formed by the side of a hexagon have measures of them up to 720° what is the measure of angle a