How do I solve 90÷14.4

Janet drove 300 miles in 4.5 hours. write an equation to find the rate at which she was traveling

Which value of m will create a system of parallel lines with no solution? y= mx - 6 8x - 4y = 12

Awater truck is filling a swimming pool. the equation that represents this relationship is y=19.75x where y is the number of gallons of water in the pool and x is the number of minutes the truck has been filling the pool.