Sophie and her children went into a bakery and where they
sell donuts for $1.25 each and brownies for $2.50 each.
Sophie has $30 to spend and must buy no less than 14
donuts and brownies altogether. If x represents the number
of donuts purchased and y represents the number of
brownies purchased, write and solve a system of inequalities
graphically and determine one possible solution.
Inequality 1: Select
plot
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Inequality 2: Select
plot
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What is the value of x when x + 7 = 21?

Suppose that 3% of all athletes are using the endurance-enhancing hormone epo (you should be able to simply compute the percentage of all athletes that are not using epo). for our purposes, a “positive” test result is one that indicates presence of epo in an athlete’s bloodstream. the probability of a positive result, given the presence of epo is .99. the probability of a negative result, when epo is not present, is .90. what is the probability that a randomly selected athlete tests positive for epo? 0.0297

Reinel saves 30% of every pay check. his paycheck last week was 560$. how much did reniel save last week?