Abiker and a walker who are 150 miles apart start moving towards each other at the same time. their speeds are 15 and 5 miles per hour respectively. how much time will elapse before they are 10 miles apart from each other?

Iam so stuck. what is the worked out answer for this question?

Marco has $38.43 dollars in his checking account. his checking account is linked to his amazon music account so he can buy music. the songs he purchases cost $1.29. part 1: write an expression to describe the amount of money in his checking account in relationship to the number of songs he purchases. part 2: describe what the variable represents in this situation.

Arestaurant chef made 1 1/2 jars of pasta sauce. each serving of pasta requires 1/2 of a jar of sauce. how many servings of pasta will the chef be bale to prepare using the sauce?