In a bag there are 10p coins 20p coins and 50p coins There are two fewer 20p coins than 10p coins.
There are five more 50p coins than 10p coins
17 (a)already done
17 (b)
Altogether, there are 60 coins.
Work out the total value of the 20p coins.

The volume of the sun is approximately 1 × 10^18 cu km, while the volume of jupiter is approximately 1 × 10^15 cu km. which of the following is true? a. the volume of jupiter is approximately one thousand times the volume of the sun. b. the volume of jupiter is approximately one hundred times the volume of the sun. c. the volume of the sun is approximately one thousand times the volume of jupiter. d. the volume of the sun is approximately one hundred times the volume of jupiter.