Gwen saves 15% of her income. This month her income is $500 more than last month. The expression 0.15(x+500) represents the amount of money she saves this month, where x is last month’s income. Gwen saves $210 this month. What was Gwen’s income last month?

$900

Step-by-step explanation:

Given:

Gwen's savings this month = 0.15(x + 500)

where,

x = last month's income.

Gwen saves $210 this month

What was Gwen's income in dollars last month?

Gwen's savings this month = 0.15(x + 500)

210 = 0.15(x + 500)

210 = 0.15x + 75

210 - 75 = 0.15x

135 = 0.15x

x = 135 / 0.15

= 900

x = $900

Gwen's income in dollars lat month = $900

answer: 21$

step-by-step explanation:

$42 / $14 = 3   (ratio 3: 1)

$7 x 3 = $21

7. d. 64

8. i. 32

9. c. 125

10. j. none of the above

11. d. 81

12. i. 216

13. e. none of the above

14. g. 240

15. e. none of the above

16. g. 32

17.   e. none of the above