Write 28/16 as a mixed number in simplest form.

a. 1 3/4
b. 1 12/16
c. 2 1/4
d. 7/4

3(10x-y)-5(x-y^2) need this solved asap

Ametalworker has a metal alloy that is 30? % copper and another alloy that is 55? % copper. how many kilograms of each alloy should the metalworker combine to create 90 kg of a 50? % copper? alloy?

Asalesperson earns $320 per week plus 8% of her weekly sales. the expression representing her earnings is 320 + 0.08x. which of the following describes the sales necessary for the salesperson to earn at least $1000 in the one week?