algebra
posted by narmin .
solve for the indicated variable:
a. temperature formula
solve for F: K=5/9(F32)+273
b. annual interest rate
solve for R: A=P+Prt
im posting this the second time, but the first reply i got didn't help much :(
can you show me how to do at least one of these?? thanks

Suppose a box of marbles contains an equal number or red and yellow marbles but twice as many green marbles as red marbles. Draw one marble from the box and observe its color. Assign probabilities to the elements.