Roberta works in a home appliance store. She is paid $195 per week and 3% on all sales over $1,000. During one year, her average weekly sales were $7,800. About how much did she earn weekly? About how much did she earn during the year?

19.

step-by-step explanation:

you add the 9 in the tens column since it is a single digit and 9 plus zero is 9 so it is 19

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so:

answer: y=0 if that is what u r looking for

5

step-by-step explanation: