Choose the student who correctly used guess and check to solve the unknown number the difference of a number and four and twelve

ivan's work
(4)(3)=12 the answer is 3

sara's work
48÷4=12 the answer is 48

hannah's work
16-4=12 the answer is 16

betty's work 12-4=8 the answer is 8​

Select a graph that have an equation with a < 0

The probability that an adult possesses a credit card is .70. a researcher selects two adults at random. by assuming the independence, the probability that the first adult possesses a credit card and the second adult does not possess a credit card is:

Someone answer asap for ! the following statements are true about the coins calvin and sasha have collected. * calvin and sasha has the same amount of money. * calvin has only quarters. * sasha has dimes, nickels, and pennies * calvin has the same number of quarters as sasha has dimes. * sasha has $1.95 in coins that are not dimes. exactly how many quarters does calvin have?