2(ab)-7 could possibly be your forgetting the quotations
Answer: 60
Step-by-step explanation:
mean: you just add all 15 numbers then divide the number you get by 15.
55+57+57+58+59+59+59+59+59+61+62+62+63+64+66=900
900/15=60
X/35 = 7
we can multiply 35 on both sides
x = 245
In order to factor a polynomial, you have to find its roots

So that you can factor it as

So, in this case, we're looking for the solutions of

So, the polynomial can be written as

Answer:

Step-by-step explanation:
Given data
It costs $35 for a membership
Monthly fee is $15
Let the number of months be x
and the total cost for x months be y
Hence the expression for the cost after x months is given as:
