Using the function = . , where c represents the number of cups of coffee and t represents the total cost in dollars, which statement is true? A. The independent variable is 2.5. B. The independent variable is t. C. The dependent variable is c. D. The dependent variable is t.

Evaluate the expression. (9 + 5)(3 + 2)0

Lizette is training for a marathon. at 7: 00 she left her house and ran until 8: 30, then she walked until 11: 30. she covered a total distance of 18 miles. her running speed was six miles per hour faster than her walking speed. find her running and walking speeds in miles per hour.

1) prove that 731^3−631^3 is divisible by 100 2) prove that 99^3−74^3 is divisible by 25