How many solutions does this system have? negative 12 x minus 4 y equals negative 8. y equals 3 x plus 2

Nikolas calculated the volume of the prism. his work is shown below.

The difference of two numbers is 40. find the numbers if 0.3 parts of one number is equal to 37.5% of the other one.

On the first of each month sasha runs a 5k race she keeps track of her times to track her progress her time in minutes is recorded in the table