Which of the following is a perfect square?

A. 169

B. 279

C. 154

D. 115

What 3 + (-4) do I do 3+4 or 3-4 or my teacher said 3 times 4 but it was wrong

A student spends 2200 dollars during one semester of college. They spend 325 on books. What percentage was spent on books

For what values of the variable x is the expression square root of 7x+14 + square root of 7-x a real number?

read the following numbers and decide what the next number should be. (12,21, 23, 32,34,43, 45 ...) is the answer 38, 54, 58, 0r 66

Find the probability of 1: choosing a yellow marble from a bag that contains 6 yellow marbles and 8 red marbles, and 2: flipping a coin and it showing heads.

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.