How many solutions does this system have?
y = 5x + 6
y – 5x = 7

a. no solutions
b. 1 solution
c. 2 solutions
d. infinitely many solutions

Three coins are flipped. what is the probability that there will be at least two tails?

Jabari is power washing houses for a summer job. for every job, he charges an initial fee plus $30 for each hour of work. his total fee for a 4 -hour job, for instance, is $170 . jabari's total fee,f, for a single job is a function of the number,t, of hours it takes him to complete the job. write the function's formula.

Average acceleration: i have no idea how to do this.