Kaylan has a bag with an equal number of red yellow and blue marbles she makes a tree diagram to show the sample space if she randomly selects to marbles out of the bag what is the probability that both nervous like to do different colors

One card is dealt from a 52 card deck. find the probability that the dealt card is a 4 or a black 7

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.

Acomputer store bought a program at a cost of $10 and sold it for $13. find the percent markup