Jalissa bought a backpack for $30 and n notebooks for $2.50 each.

a. Write a function that shows the amount Jalissa spent on her backpack and n notebooks.

b. If she spent $40, how many notebooks did she buy?

A cross product is an equation which states that two ratios are equal. True False

Solve the system of equations by substitution y=3x-10 3x+2y=16

Cual es el valor de verdad de: El rio magdalena es el rio más largo de colombia

A bag contains red, blue, and green marbles in the ratio of 7:6:8. If the bag contains 147 marbles, how many red marbles are there?

Six students eat 6 apples in 33 seconds. How long will it take nine students to eat 19 apples, if they don't cut apples into parts?

A Ladder that is 32 ft long leans against a building. The angle of elevation of the ladder is 70. To the nearest tenth of a foot how high off the ground is the top of the ladder? A. 20.3 ft B. 10.9 ft C. 26.2 ft D. 39.1 ft

Given that |-6| > 5, which statement is not true? -6 is farther from 0 than 5 is on the number line -6 is greater than 5 5 > - 6 6 > 5

Mr. Thaxton has two daughters. The sum of their ages is twenty-one. The product of their ages is one hundred ten. How old is Mr. Thaxton's youngest daughter? A. 9 B. 10 C. 11 D. 12

Which rational expression is equivalent to 1 / (x+4) + 3 / (x-5)

Bingo uses the numbers 1 to 75. If you randomly select a number, What is the probability it will not be a multiple of 7? Express your answer as a fraction.