Alexa broke a cell sample into 1212 batches, each weighing 1.2\times 10^{-9}1.2×10 −9 grams. How much did the original sample weigh? Use scientific notation to express your answer.

The midpoints of the sides of the large square are joined to form a smaller square. what is the area of the smaller square

The water company charges a residential customer $41 for the first 3,000 gallons of water used and $1 for every 200 gallons used over 3000 gallons. if the water bill was $58 how many gallons of water were usedanswersa 3400 gallonsb 6000 gallonsc 6400 gallons d 7000 gallons

Eiko is wearing a magic ring that increases the power of her healing spell by 30%. without the ring, her healing spell restores h health points. which of the following expressions could represent how many health points the spell restores when eiko is wearing the magic ring?