If the average speed of a truck is 65 miles per hour on a trip of 520 miles, how many hours are required to arrive at the destination

Scrub a dub toothbrushes are $4.00 each. there is a 10% discount, but there is also a 6% sales tax after the discount is applied. what is the new price after tax? round to the nearest penny

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?

Rewrite the following quadratic functions in intercept or factored form. show your work. f(t) = 20t^2 + 14t - 12