7. Quentin has 45 coins, all dimes and quarters. The total value of the coins is $9.15. How many of each coin does he have?
Number of dimes =
Number of quarters =

Acentral angle measuring 160 degrees intercepts an arc in a circle whose radius is 4. what is the length of the arc the circle formed by this central angle? round the length of the arc to the nearest hundredth of a unit. a) 4.19 units b) 6.28 units c) 12.57 units d) 12.57 square units

The ratio of the height of two similar cylinders is 4 to 3 what is the ratio of their volumes

Adriana had a garden where he measured the height of a corn plant. what. on the first day,it was 145 cm tall.after 2 weeks is grew by 23 cm.what is the height of the corn plant