This stem-and-leaf plot represents test scores of students in a math class. if two test scores, 79 and 79, are added to the data, which statement will be true? a. the median will change; the mode will stay the same. b. the mode will change; the median will stay the same. c. the median and the mode will both change. d. the median and the mode will stay the same.

3

step-by-step explanation:

in standard form:

a= dictionaries

b= maps

you have to buy 3 dictionaries, so put a 3 next to the a (dictionaries) so that you can multiply them by each other.

a3+b= 60 (the amount of money you have)

we already know the cost of a=15 so replace a with $15

($15 x 3)+b=60

multiply 15 and 3 to get $45 and replace it with $45

45+b=60

and then replace b with 15 to get the total:

45+15=60

that means you have $15 left after buying 3 dictionaries.

15 divided by the cost of a map ($5) equals 3.

so you can buy 3 maps.

sorry if it was confusing!

yes the total will be same because in both of them the expression.is rearranged but their sign remains the same hence it hss just been shuffled