Tim mowed lawns for 2 hours and earned $4.50 per hour. Then he washed windows for 4 hours and earned $3.45 per hour. What was Tim's average earnings per hour for all 6 hours.

$3.23 per hour

Step-by-step explanation:

4.5+4.5+3.45+3.45+3.45+3.45=19.35

19.35/6=$3.225 or $3.23 per hour

yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value

answer: 1722

step-by-step explanation:

given: the mass of saturn=

the mass of mercury=

the number of times the mass of saturn is greater than the mass of mercury

hence, the mass of saturn is 1722 times greater than the mass of mercury.