Answer:
Susan is 13 years old.
Step-by-step explanation:
Susan=x
After 7 years she will be 7+x then she will be 2x as old as she was 3 year ago.
age 3 yrs ago=x-3
2x-6=7+x
if you simplify....
now she is 13
hope it helps!!!!
1, 33.3
2, 81.9
3, 240
4, the farmer sold 33.3 of his crops
5, 750 students are enrolled.
16
-23, -20, -16, -10, -1, -1, 0, 0, 7, 10, 10, 11, 15, 16, 16, 17, 17, 17, 17, 19, 19, 22, 22, 24, 25, 25, 29, 35
4.2
10% of 42 is 4.2