Simplify 5 (a - b) + 6 (a + b) - 7 (a - 2b)

4a - 13b

4a + 15b

19ab

A pizza stand offers 4 toppings how many different pizza selections are possible if pizzas can be ordered plain or with up to 4 toppings?

A man bought 5 dozen shirts at $42 per dozen. He sold 70% of them at $7.50 per shirt and the rest at $7 per shirt. How much money did he earn?

The formula to convert Fahrenheit to Celsius is C=5/9 (F-32). Convert 18 degrees C to Fahrenheit. Round to the nearest degree.

What does it mean to say two variables vary directly or inversely?

What is the solution to the system of equations y=x+3, y=3x+1

Coffee, tea, and pastries are sold at a coffe shop. Last week, 2/5 of the coffee shop's profits were from sales and 1/3 of ots profits were from tea sales. The rest of its profits were from pastrie sales.

the height of the slide is 10 feet. The distance between the ladder and the edge of the slide is 12 feet. what is the distance of the slide?

sally works 40 hours a week and makes $10 an hour, but her kids are in child care each day, and the day care center charges her $20 per day. If you deduct her childcare expenses, how many dollars per hour does she actually make?

1=5. 2=10 3=15. 4=10 5=x. what does x equally

What is 32 quarters equal blank gallons