Which expression is equivalent to the following expression? 3(2x + 3)

5x + 6

6x + 6

6x + 9

5x + 9

6x + 9

Step-by-step explanation:

distribute the 3 so then you get 3(2x) which equals 6x and 3(3) which equal 9 so

6x+9

6× + 9

Multiply each term in the parentheses by 3.

x+y=90

x=30-y=x

step-by-step explanation:

if you understand you will get the answer

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.