You have a job that pays by the hour. on thursday, you worked 7 hours and earned $42. on friday, you worked 2 hours and earned $12. let x represent the number of hours worked and let y represent the amount earned. write an equation in slope-intercept form that models the situation.

In the 30-60-90 triangle below side s has a length of and side r has a length

The birth weights of newborn babies in the unites states follow in a normal distrubution with a mean of 3.4 kg and standard deviation of 0.6 kg. reaserches interested in studying how. children gain weights decide to take random samples of 100 newborn babies and calculate the sample mean birth weights for each sample

How are algebraic expressions evaluated using substitution?