A bag contains 18 coins consisting of quarters and dimes. The total value of coins is $2.85. Which system of equations can be used to determine q - the number of quarters
d - the number of dimes

A. 0.25q+0.10d=2.85
q+d=18
B. 0.10q+0.25d=18
q+d=2.85
C.0.25q+0.10d=18
q+d=2.85
D. 0.10q+0.25d=18
q+d=2.85

Rachel reads 1/5 of the pages of a book plus 12 pages on the first day. on the second day, she reads 1/4 of the remaining pages plus 15 pages. on the third day, she reads 1/3 of the remaining pages plus 18 pages. on the fourth day, she reads the remaining 70 pages. how many total pages are in the book?

Big boi and travis scott are performing at the super bowl. travis scott is 62 years younger than twice big boi’s age. the sum of their ages is 70 years old. use b to represent big boi’s age. write and solve an equation.

Divide. write in the simplest form. 4 1/6 divided by 10