Every 1/2 hour naomi streches her neck; every 1/3 hours she stretches her legs; and every 1/6 hour she streches her arms. which parts of her body will naomi strech when2/3 of an hour has passed?
a- neck and legs
b- neck and arms
c- legs and arms
d- none

the least common denominatore of 7 and 2 is 9

step-by-step explanation:

7+2=9

3

step-by-step explanation:

in standard form:

a= dictionaries

b= maps

you have to buy 3 dictionaries, so put a 3 next to the a (dictionaries) so that you can multiply them by each other.

a3+b= 60 (the amount of money you have)

we already know the cost of a=15 so replace a with $15

($15 x 3)+b=60

multiply 15 and 3 to get $45 and replace it with $45

45+b=60

and then replace b with 15 to get the total:

45+15=60

that means you have $15 left after buying 3 dictionaries.

15 divided by the cost of a map ($5) equals 3.

so you can buy 3 maps.

sorry if it was confusing!