write an equation in slope intercept from for the line slpe -1/2 and y- intercept -3 help me with this ASAP

Due to financial difficulties the owner of 4 skateboard stores is going to close 2 of his stores. based on the money earned at each store, which two stores should remain open?

Out of 50 students surveyed, 16 have a dog. based on these results, predict how many of the 280 students in the school have a dog.

Which of the following is an example of a rational number? a. π b. √ 9 c. √ 8 d. 3.8362319