Solve the system of equations.

13x-y=90

y=x2-x-42

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The pizza pantry has a 25% off grand opening special. you have a coupon for a restaurant. you save $3 on a meal. how much was the original meal?

What's 3 answers to 18a_6b

Find y if y = - 6x + 84

What steps assist with adding and subtracting rational expressions

Chelsea has four hours of free time on Saturday. She would like to spend no more than 2/3 of an hour on each activity. How many activities can she do during that time?

Write the given situation as an equation or inequality and then solve it. The local amusement park sells summer memberships for $50 each. Normal admission to the park costs $25; admission for members costs $15. A.

The ratio in size of Gabriel's room to her brother Giorgio's room was 5:3. The area of Gabrielle's room was 240 square feet. If Giorgio's room was square-shaped, what was the length of his room?

A student estimates that it would take 3 hours to write a book report, but it actually took her 5 hours. What is the percent error?

Jerry makes 20$ an hour. He spends 30 dollars a day on transportation and food. Write an expression to describe his spending and earnings for the day, where x is the number of hours that Jerry works that day.

Find the percent increase for the given original and new quantities in parts a through c. a. Original quantity: 100 New quantity: 106 b. Original quantity: 10 New quantity: 16 c. Original quantity: 50 New quantity: 56 a.