What is the purpose of finding the slope of a line?
a. to add up all the variables
b. to measure the rate of change
c. to balance out undefined relationships
d. to determine whether the relationship is positive or negative

What is the solution to the inequality

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?

Kevin's bank offered him a 4.5% interest rate for his mortgage. if he purchases 3 points, what will be his new rate?