Jackie is selling smoothies at a school fair. She starts the day with $15 in her cash box to provide change for her customers. If each smoothie costs 3.75, which graph represents the balance of the cash box, y, after Jackie sells x smoothies?

Lois and clark own a company that sells wagons. the amount they pay each of their sales employees (in dollars) is given by the expression 12h+30w12h+30w where hh is the number of hours worked and ww is the number of wagons sold.

Acircle has a circumference of 28.36 units what is the diameter of the circle

An energy drink company claims that its product increases students' memory levels. to support its claims, the company issues advertisements claiming that 8 out of 10 people (chosen randomly from across the country) who tried their product reported improved memory. the missing component in this study is a .