Pls I really need help it’s confusing!! Brainliest??

Julius sold five times as many computers as sam sold last year. in total, they sold 78 computers. how many computers did julius sell?

Solve this riddle: i am an odd number. i an less than 100. the some of my digit is 12. i am a multiple of 15. what number am i?

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 =