What does math universal mean

Write and solve an equation to find the number. The sum of - 5 and a number is - 15. a. -5 + n = - 15; - 10 c. n + 5 = - 15; - 20 b. 5 - n = - 15; 20 d. 5n = - 15; - 3

To the nearest degree what is the measure of each exterior angle of a regular dodecagon

How to factor x^2-8x+16

If a set of data is in the direction of a downward line, which of the following would be the best model for this data? Quadratic regression model Exponential regression model Linear regression model None of the above

12+21 divides by 3 + (2 of the power of 2 times0

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.