Answer:
15 + 5w ≥ 75
Step-by-step explanation:
Let the number of weeks be represented as w.
We are told from the question that:
Charles is saving $5 each week from his allowance. He already saved $15 from the money he earned from mowing his neighbor's lawn.
The word "at least" in mathematics means equal to or greater than and it is represented by the sign ≥
Therefore, our inequality equation is written as:
15 + 5w ≥ 75
An = 12 + 15(n-1)
a18 = 12 + 15(18-1)
a18 = 12 + 255
a18 = 267
Sixty five times sixty five = 4,225
