I think of a number halve it then subtract four

Which of the following ordered pairs is the solution to the system of linear equations? x plus two y equals twelve; y equals three x minus one (5, 14) (4, 4) (2, 5) (6, 3)

1 Alicia went to the local farmer's market to buy some fresh produce. She bought carrots for 35% off the original price of $7.40. How much did she save?

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A bar of soap weighs 3.8 ounces. the ingredient glycerin makes up 0.4 of the weight of the soap. what is the weight of the glycerin in the bar of soap?

A gift box's rectangular base has a perimeter of 92 centimeters. The length of the base is one more than twice the base's width. Find the width (in centimeters) of this rectangular base.

A newspaper reporter wants to know how popular the hobby of bird watching is in the city. He asked people at the local bird refuge if they watched birds as a hobby. Which of the following best explains whether the reporters data is valid or not?

I am very confused on how to figure out if y = 3/4x is proportional?

Alison wants to buy a mountain bike for $339.12. If she saves $28.26 each month, in how many months will she be able to buy the bike?

At 12 o'clock the temperature was 7°C. The temperature decreased by - 20°C. What is the new temperature?

Ashleys rentals charges $27.50 per hour to rent a surfboard and a wetsuit. Darlas surf shop charges $23.25 per hour to rent a surfboard plus $17 extra for a wetsuit.