Solve the system by substitution.
y= -6x
y= -4x+4

Tickets to an orchestra concert cost $25.50 apiece plus a & 2.50 handling fee for each order. if jamal spent $79 how many ticket did he purchase

Iq scores for adults age 20 to 34 years are normally distributed according to n(120, 20). in what range does the middle 68% of people in this group score on the test?

If private savings 'v' = 0.75s and total savings 's' equals $4.20 billion, solve for public and private savings.