3a + b = 225

b-a = 25

What is the temperature in Celsius degree for 40 Fahrenheit

mark goes to the mall every 4 days, costco every 2 days, and the grocery store every 3 days. if he goes to all three on the 15th, when will he go to all three again?

What is 5x10 (72 89-96)

8' 4" - 2' 6" = ?'?"

If a = 13 feet, b = 7 feet, c = 2 feet, d = 17 feet, and e = 3 feet, what is the area of the object?

Which two ratios form a proportion?

There were 149 angelfish and goldfish in an aquarium. There were twice as many guppies as angelfish. After selling 35 goldfish, there are half as many goldfish as angelfish. How many fish are left in the aquarium?

Which statement can be concluded using the true statements? If a quadrilateral has 4 equal sides and 4 equal angles, then it is a square. If a figure is a square, then each of its angles must measure 90 degrees

Maxine works at an amusement park. She recorded the number of ice cream cones sold each day, along with the high temperature in fahrenheit degrees. Usinger her data, she wrote a linear regression equation of y=9x-487.

Running consumes about 720 calories per hour about how many are used if you run for 40 minutes