Solve this system of linear equations. Separate the x- and y-values with a comma.
- 10x + 2y = -28
-13x + 3y = -40

Acar travels at an average speed of 52 miles per hour. how long does it take to travel 299 miles

F(x)=x/2-2 and g(x)=2x^2+x-3 find (f+g)(x)

Florence price's brownies and more sells all types of cookies and pastries. on tuesdays, they markdown all brownies 75% to a sale of $1.50 a dozen. find the selling price and the markdown of a dozen brownies.