You can solve this in a long way so that you will understand
the relationship of the increase in the number of memberships sold.
First week = 5 memberships
Second week = 8 memberships (5 + 3)
Third week = 11 memberships (8 + 3)
Fourth week = 14 memberships (11 + 3)
Fifth week = 17 memberships (14 + 3)
Total after 5 weeks = 55 memberships sold (5 + 8 + 11 + 14 +
17)
Answer:

Step-by-step explanation:
1 Subtract z from both sides.

2 Divide both sides by y

3 Switch sides.

2nd question
Answer: 
Step-by-step explanation:
1 Subtract h from both sides

2 Multiply both sides by j.

3 Divide both sides by k−h.

4 Switch sides.

4(3+5) --> this means that 12/4=3 and 20/4=5 and 4 is the GCF
You need to show us what the triangle is
Answer:
6
Step-by-step explanation: