Suppose p varies directly with d, and p=7 when d=3 what is the value of d when p=28. 140/3 4/3 12 16

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much

Use the four functions below for this question. compare and contrast these four functions using complete sentences focus on the slope and y- intercept first, and then on any additional properties of each function

Juanita wade's new car has an msrp of $28,902.11 including title and processing fees. the premier package which includes surround sound and dvd player costs three times the amount of the in-style package which includes leather seats and select wheels. the total cost of her new car was $34,290.08 which included the 6.5% sales tax. find the cost of the premier package to the nearest cent.