Can someone just chill out with me

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

What is the area of a triangle with a base of 7x and height of 8x expressed as a monomial? question 5 options: 1x 15x2 28x2 56x2

If a revenue in total for a month was $9,950, fixed expenses were $9,000, and variable expenses were $300 what would be the total profit/ loss for the month?