A roll of wallpaper cost £7.85. Richard buys 29 rolls of wallpaper. Work out an estimate for the total cost.

Richard will pay $227.65. If you round it to the nearest dollar, it will be $228.

Step-by-step explanation:

If one roll is $7.85 and he buys 29 rolls, you multiply 7.85 X 29 and get 227.65.

the correct is answer is a 9-sided polygon!

10.416 meters per second

step-by-step explanation:

distance=1 00 meters

time= 9.6 seconds in decimal form or 9 3/5 as a mixed number

average speed= 100/9.6

=10.416 meters per second or 10 52/125 as a mixed number.