Which answer correct estimates the product of 3.09 × 304.87? a. about 9.0 b. about 9.9 c. about 90 d. about 900

Can someone check my answer? you : )

Jamie went to home depot.she bought 25 bags of soil that cost $9 per bag.she bought 15 pots at $8 each, and she bought 23 bags of pebbles at $15 each.she used a coupon that gave her $5 off for every 100 dollars she spent. how much did jamie pay at the end?

How many triangles can be drawn with side lengths 4 centimeters, 4.5 centimeters, and 9 centimeters? explain