Find the sum of the arithmetic series.
16+7+(-2)+...+(-65)

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?

Valentina is subtracting from . she finds the lcd to be 15y2. what is valentina's next step?

There are 45 questions on your math exam. you answered 810 of them correctly. how many questions did you answer correctly?