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Mathematics

Catherine has $54. She plans to spend more than $20 of the money for a painting canvas. The rest will go toward paints. Each tube of paint costs $8.50. Assume that x represents the number of tubes of paint Catherine can buy. The inequality that best represents this scenario is . The number of tubes of paint Catherine can buy is .

The ratio of boys to girls in a school is 4:5. How many boys are in the school if there are 720 students.

The coordinates R(1, -3), S(3, -1) T(5, -7) form what type of polygon?

h(a) = a^2 + 3a; Find h(-10)

A 20% increaed followed by a 20% decrease

Lori works as a cartoonist for a teen magazine. The time she spends sketching is given by the equation m = 12s, where m is the number of minutes and s is the number of sketches. If Lori made of a sketch, she spent minutes sketching.

What is 131 rounded by the nearest tenth?

Melissa holds two jobs. In Job A she earns $14 per hour, and in job B she earns $12.50 per hour. One week Michelle worked a total of 45 hours and earned $600. How many hours did she work in each job that week. Show your equation and work that you used to solve the equation.

Belinda’s mother took the family out to dinner. The food bill came to $72.00. The sales tax is 6% of the cost of food. As a tip, Belinda’s mother left 20% of the original food bill. What was her total cost?

What is the distance between the points (4,7) and (4,-5)? 4 units 2units 12 units 0 units

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