Write an expression to describe the sequence below. use n to represent the position of a term in the sequence, where n = 1 for the first term.

-33, -66, -99, -132,

Step-by-step explanation:

1. This is a arithmetic sequence, so the equation is .

is -33 and the d is -33.

So, the equation is .

93.8

step-by-step explanation:

lets say, first number = x

second number = 3x+7

total = 49

(x)+(3x+7)= 49

4x+7 = 49

4x = 42

x = 42/4

x= 10.5

x= 10.5

3x+7 = 3(10.5)+7 = 93.8

hope this