12 identify the measures for all the numbered angles. i only need 1,3,5,7

Name each raycalculation tip: in ray "ab", a is the endpoint of the ray.

Simplify 15(x - 4)(x -1)-3(x + 4)(x - 1) with steps

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?