Answer:
a. Arithmetic
b. 
c. 
Step-by-step explanation:
A sequence is arithmetic when the difference between one term and the next is a constant. On the other hand, a sequence is geometric when the next term is found by multiplying the previous by a constant.
In this case, the next term of the sequence can be found by adding $15. Therefore, the sequence is ARITHMETIC ✔️
The recursive formula will be the following: 
The explicit formula is the following: 
Answer:
x = -7
Step-by-step explanation:
8x - 2(+2)= -9(+2)+ 7x
8x(-7x) = -7 +7x(-7x)
x = -7
Because this is an equiangular triangle, we can set any two sides equal to each-other to solve for x, because all sides are the same length.
5x - 22 = 4x - 10
Subtract 4x from both sides.
x - 22 = -10
Add 22 to both sides.
x = 12
<h3>The value of x is equal to 12.</h3>
Answer:
y = mx + b. When b ≠ 0, the relationship between x and y is nonproportional.