Which pair of angles is NOT an example of adjacent angles?

If private savings 'v' = 0.75s and total savings 's' equals $4.20 billion, solve for public and private savings.

Avery’s piggy bank has 300 nickels, 450 pennies, and 150 dimes. she randomly picks three coins. each time she picks a coin, she makes a note of it and puts it back into the piggy bank before picking the next coin.

Bobs burgers bam has a special deal of 4 hamburgers for $6. at that rate, how much should it cost to buy 3 hamburgers?