Anewborn baby has about 26 cells an adult has about 1.9 ×10 to the third times as many cells as a newborn baby how many cells does an adult have

Which is an equation for the nth terms of the sequence 12,15,18,21

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?

Ann and betty together have $60 ann has $9 more than twice betty’s amount how much money dose each have