Solve the system by substitution.
10x + 5y = -50
y = -x

2-3 6. use your equation to find how high tyler will have to climb to scale the peak. (4 points: 2 points for correctly substituting values, 2 points for the correct height)

Student price tickets to a movie are $1 and non student tickets are $2 . 350 tickets are sold and the total amount made is $450. there were 250 student tickets sold . true or false .

Iwill give ! if m∠a=59 and m∠3=81°, what is m∠b? m∠b= _[blank]_°