On a field trip ,there are 3 adults for every 45 students .which graph models a relationship with the same unit rate

The point a is at –2 and the point b is at 7. marissa would like to divide this line segment in a 4: 3 ratio, and she would like to use the formula x = (x2 – x1) + x1. what values should she substitute into the formula? a = a + b = x1 = x2 =

Which of the following is the sum of 3 1/6 + 6 3/8?

Can someone me and explain..will award brainlest!