There are about 10 properties that you need to remember.
Answer:
see below
Step-by-step explanation:
2+7 = 9
9+7 = 16
16+7 = 23
We are adding 7 each time
an = a1+ 7(n-1) where an is the nth term a1 is the first term and n is the term number
an = 2 + 7n - 7
an = 7n -5
or
an+1 = an +7
Since they’re both in standard form and they both say that y is equal to something, you just have to set them up with one another
2x-10=4x-8
Subtract 2x
-10=2x-8
Add 8
-2=2x
Divide by 2
-1=x
x=-1
Check it by inserting it
2(-1)-10=4(-1)-8
-2-10=-4-8
-12=-12
So x=-1 is the answer
18a:16 18b:32 % means out of 100
