What is the solution of the system?

7x+2y=-19

-x+2y=21

What is the approximate probability that the student will choose to participate in two teams

Johanna's parents give her $10 per week for lunch money. She cannot decide whether she wants to buy or pack her lunch.

Ben got a part-time job. his mom said he must save at least two-thirds of his weekly paycheck, and can spend the rest. if he wishes to spend $40 this week, how much must he make?

What are the 6 trigonometry functions

Hayden invested $750 for three years at an interest rate of 0.035. How much interest did he earn in that time?

0.0025 cm << in scientific notation

Which equation represents Jacob's age

A square garden has sides that are 9 yards long. What is the garden's area?

What is 23 to the third power

A monkey is swinging from a tree. On each swing, she travels along an arc that is 75%, percent as long as the previous swing's arc. The total length of the arcs from her first 4 swings is 175m.