If 3 pencils and 4 erasers cost $7.25 while 5 pencils and 5 erasers cost $10 - how much are each separately.

What is the square root of 45? (step by step working plz)

The random variable x represents the number of phone calls an author receives in a day, and it has a poisson distribution with a mean of 8.7 calls. what are the possible values of x

Darren earned $663.26 in net pay for working 38 hours. he paid $118.51 in federal and state income taxes, and $64.75 in fica taxes. what was darren's hourly wage? question options: $17.45 $19.16 $20.57 $22.28