If Mike gets paid $200 per week plus $5 per hour for every hour he works while Mark gets $240 per week plus $3 per hour, how many hours must they both work to get the
same paycheck?

Solve the following pair of equations for x and y: ax/b_ by /a= a +b; ax - by = 2ab

If the average of x,y and z is 15 what is their sum

Eiko is wearing a magic ring that increases the power of her healing spell by 30%. without the ring, her healing spell restores h health points. which of the following expressions could represent how many health points the spell restores when eiko is wearing the magic ring?