Is -4 + 7x + 4 = 3y a Direct varation yes or no

Dee used 2 1/3 cups of sugar for a cake recipe. if the amount of sugar the container holds is 3 times the amount she used, does the container hold more than, less than, or equal to 3 cups of sugar? explain.

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

Abacteria population is tripling every hour. by what factor does the population change in 1/2 hour? select all that apply