Jamilla is throwing a small party. She has 4 pizzas and decides that everyone at her party should receive a serving size

If a and b are the measures of two first quadrant angles and sin a = 4/9 and sin b = 2/5 find sin(a+b).

What expression is equivalent to 1/2(2+3x-6)

Savannah is painting a striped background for a mural on a wall that is 1515 yards long. she wants a total of 9696 stripes that are all the same width. which calculation should savannah use to decide how wide to make each stripe?