PLEASE HELP ME !!

a) Round 9909.909 to 3 significant figures

b) 2 decimal places

You are remodeling your kitchen. you’ve contacted two tiling companies who gladly told you how long it took their workers to tile of a similar size jim completed half the floor in 8 hours. pete completed half of the other floor in 7 hours. if pete can lay 20 more tiles per hour than jim, at what rate can jim lay tiles

Find the value of x that will make l ll m

You wanted to draw an enlargement of design that printed on a card that is 4 in by 5