Five billion four million two thousand eight in standard form

You earn a 12% commission for every car you sell. how much is your commission if you sell a $23,000 car?

Let hh represent the number of hummingbirds and ss represent the number of sunbirds that must pollinate the colony so it can survive until next year. 6h+4s > 746h+4s> 74 this year, 88 hummingbirds pollinated the colony. what is the least number of sunbirds that must pollinate the colony to ensure that it will survive until next year?

How do i multiply two digit numbers