Rob is saving to buy an mp3 player. for every 15 dollars he earns babysitting, he saves 6 dollars. on saturday rob earned $75 dollars. how much did he save.

Rob saved $30 while he earned $75.

Step-by-step explanation:

Given:

For every 15 dollars he earns babysitting, he saves 6 dollars.

For money earned = $15

Money saved = $6

We will first find the percentage amount saved by rob

Percentage of amount is calculated by dividing money saved with for money saved and then multiplied by 100.

Percentage amount saved =

Now we need to find the amount of money save  when money earned $75.

Amount of money saved can be calculate by multiplying money earned with percentile amount saved.

Framing in equation form we get;

Amount saved =

Hence Rob saved $30 while he earned $75.

1 is b and 2 is d

step-by-step explanation:

b.) 160 miles on a 5 gallons car

step-by-step explanation:

240/10=24 miles/gallon

160/5=32 miles/gallon

30/1=30 miles/gallon

168/6= 28 miles/gallon

32 miles/gallon is the most amount, so this is the best.