What number could replace the o so that the given system of equations has one solution? Check all that apply.
{y= 4x-3
{y-Ox+2
O A. O
DB. 5
O c. 4
D D. 2

Reflect the point (7,0) across the y-axis

60 musicians applied for a job at a music school. 14 of the musicians play both guitar and drums. what is the probability that the applicant who gets the job plays drums or guitar?

I'm at a bookstore with $\$35$ in my pocket and a $20\%$-off coupon. what is the cost of the most expensive book i can buy with my money and the coupon? (assume that there are books of every possible price in the bookstore. it's a large bookstore! )