My mom told me I had a test today and I didn’t study she abuses me so much times abt this and I’m literally so disappointed. :( pls for once help...

The expression 42 plus 57 shows how much money nate spent at a store .which expression also shows how much money nate spend

[10 points, algebra 2]according to my answer key the restrictions are -1 and 4. but why not positive 1?

Data from 2005 for various age groups show that for each $100 increase in the median weekly income for whites, the median weekly income of blacks increases by $105. also, for workers of ages 25 to 54 the median weekly income for whites was $676 and for blacks was $527. (a) let w represent the median weekly income for whites and b the median weekly income for blacks, and write the equation of the line that gives b as a linear function of w. b = (b) when the median weekly income for whites is $760, what does the equation in (a) predict for the median weekly income for blacks?