Multi-step equations

I need an equation for:

A class of 4th graders sold tickets to their school play. Each of the 23 students in the class sold 4 tickets. The class earned $644 how much did each ticket cost?

2/3 (6e + 9f - 21g) - 7f

What is 42/6 in simplest form

45x^3a+27xa^2=9xa () complete the statement

kaley cuts half of a loaf of bread into 4 equal parts. What fraction of the whole loaf does each of the four parts represent

How many pints are in 6 1/4 of a quart

Ted is building a brick patio with red and gray bricks. He uses a pattern in which the number of red bricks increases by two as the number of gray bricks increases by one. When Ted has 5 gray bricks, how many red bricks will he need?

Solve each eqyation for m. then find the value of m for each value of n. m+3n=7, n=-2,0,1

Mr. Beachem is selling 88.7 ice cream cakes. 34 were bought, and 8 were stolen. How many ice cream cakes are there?

what is 4 and 2/3 + 7/9

Digital clocks can display how many numbers that are perfect squares