43 x (-19/37). jamie says the value of the expression is close to -0.75. does jamie's estimate seem reasonable? explain

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

If x varies directly as y, and x = 7.5 when y = 10, find x when y = 4

Lisette takes an ela exam and got 16 out of 27 questions correct. what percentage of the questions did lisette get correct?