Ill mark you pls help! I've been looking for the answer and I still couldn't find it

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles

Student price tickets to a movie are $1 and non student tickets are $2 . 350 tickets are sold and the total amount made is $450. there were 250 student tickets sold . true or false .

Susie wants to take her friend out for lunch.she wants to spend $9.75 each person. how much will she spend in all.