Heidi has x donations for the bake sale. grandpa case has 2 fewer donations than heidi. if there are 7 donations in all, which equation represents the equation to determine the value of x?

2x = 7
7 – x = 2
x + (x − 2) = 7
7 = x + 2

Do graduates from uf tend to have a higher income than students at fsu, five years after graduation? a random sample of 100 graduates was taken from both schools. let muf be the population mean salary at uf and let mufsu be the population mean salary at fsu. how should we write the alternative hypothesis?

5,600 x 10^3 = a) 560 b) 5,000,600 c) 5,600,000 d) 56,000

Alonso walked with his friend andy one day, and wanted to compare their speeds. alonso walked 3 miles in one hour, and andy walked 2 miles in 2 hours. complete the table to graph the relationship for each person.