Answer:
b. x ≤ 3
Step-by-step explanation:
15 ≥ 5x
15 ÷ 5 ≥ x
3 ≥ x
x ≤ 3
3456 is the area of trapezoid ABCD
Let the sister be x years old.
Then Jessica is x + 5 years old.
Their ages add to 47.
x + x + 5 = 47
2x + 5 = 47
2x = 42
x = 21
x + 5 = 26
Jessica is 26, and her sister is 21.