The explicit formula for a sequence is an=−1+3(n−1)

What is the 55th term of the sequence?

Enter your answer as a number, like this: 42

Simply 8x squared + 5(7x squared- x) - 2x =

Galen sold tickets of his church’s carnival for a total of $2,820. children’s tickets cost $3 each and adult tickets cost $5 each. the number of children’s tickets sold was 30 more than 3 times the number of adult tickets slod. how many children’s ticket and how many adult tickets did he sell?

Cos^2x+cos^2(120°+x)+cos^2(120°-x)i need this asap. pls me