Substitute to Find the Value of the Expression $r$ Kilometers Per Hour for Thours, a Driver Will Travel Rt

question 111

Multiple Choice

Substitute to find the value of the expression.
-Traveling at $r$ kilometers per hour for thours, a driver will travel rt kilometers. How far will Danny travel in 10 hours at a speed of 79 kilometers per hour?

• A) \(7.9 \mathrm {~km}\)
• B) \(790 \mathrm { mi }\)
• C) \(790 \mathrm {~km}\)
• D) \(89 \mathrm {~km}\)