A jar contains "q" quarters and "d" dimes. There are 7 coins in the jar and the total value of the coins is $1.00 Which system of equations can be used to find how many of each type of coin is in the jar.

A. 0.25q + 0.10d = 1.00

q + d =7

B. 0.25q + 0.10d= 7.00

q + d = 1

C. 0.10q + 0.25d = 1.00

q + d = 7

D. 25q + 10d = 1

q + d = 7

Equation for the calculation double 2 and then add 5

8.74 rounded to the nearest whole number

You coordinate volunteers for litter cleanup in local parks. your spreadsheet lists drivers and the number of seat belts in each driver’s car. the spreadsheet calculates the number of drivers (d) and the total number of seat belts (s). you want to know the maximum number of volunteers, besides drivers, that can be transported to the park in a single trip given that each person must have a seat belt of their own.