Hi I’m not good at math and I’m trying but this is due today. 2(x+4)-10=10+5x

Show your work please

Sketch one cycle if the cosine function y=2cos2theta

[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

You have 12 balloons to blow up for your birthday party. you blow up 1/3, and your friend blows up 5 of them. what fraction of the baloons still need blowing up