Trial and error
tried 8 x 6 =48
i used 10 x 5 to get closer to 100
10 x 5= 50
50+ 48= 98 all I need is 6 which is 2 x 3
8 x 6 = 48
5 x 10= 50
3 x 2 = 6
Total = 104
Hope this helps
Do 17 ounces minus 5.25 ounces and you'll get your answer
(88 + 92 + 96 + x) / 4 = 90
(276 + x) / 4 = 90
276 + x = 90 * 4
276 + x = 360
x = 360 - 276
x = 84 <=== he would need an 84
X - the number of five dollar bills
y - the number of one dollar bills
She has 18 bills in total.

She has $62.

Set both expressions equal to each other:

She has 11 five dollar bills and 7 one dollar bills.
Here go to this website is has your answer
https://www.wyzant.com/resources/answers/173997/the_length_of_the_rectangle_is_7ft_more_than_twice_the_width_and_the_area_of_the_rectangle_is_99ft_squared_find_length_and_width