Form an equation based on the information given.

Lynne is 4 years younger than her sister Tobbe. If the sum of their ages is 18, how old are Lynne and Tobbe?

lynne is 7 and tobbe is 11

(18/2)+2=x

x-4=y

Step-by-step explanation:

if you are saying purchasing 3 social media ads and one newspaper ad counts as one purchase then there are:

6 purchases

if you are asking how many of each then:

18 social media ads

6 newspaper ads

to find the perimeter of the rectangle this is the expression:

x-9+x-9+3x-4+3x-4=138

if we simplify it:

8x-26=138

remember, 138 is what it all adds up to

the length is 11.5cm

the width is 57.5cm

the area is 661.25cm^2

the answers might not be correct use at own risk