Sandy and her friends are going to the movie. Each person will buy a ticket for $5 and a popcorn of $2 sandy has coupon to take half off of the entire price. (4(5+2))÷2

30 pts, will mark brainliestwhat is the period of the sinusoidal function? (picture 1)what is the minimum of the sinusoidal function? (picture2)what is the maximum of the sinusoidal function? (picture 3)

Use the elimination method to solve the systems of equations. choose the correct ordered pair. 7x+4y=39

Evaluate the expression for the given value of the variable. | ? 4 b ? 8 | + ? ? ? 1 ? b 2 ? ? + 2 b 3 -4b-8+-1-b2+2b3 ; b = ? 2 b=-2