Spiral Review Juana and Andy completed 20 math problems total. Juana completed 6 more problems than Andy. Write an equation to determine the number of math problems that Andy completed, then solve the equation.

How many of the math problems did Andy complete?

Enter the correct answers in the boxes.

a variable is any characteristics, number, or quantity that can be measured or counted. a variable may also be called a data item. hope i !

the number 100 represents the number of trials in the experiment.

49/100 represents the experimental probability of the coin landing heads up.

step-by-step explanation:

answer: c

substitute in the values.

for a:

f(0) = 0 + 9

f(0) = 9

a is a solution.

for b:

f(7) = 14 + 9

f(7) = 23

b is a solution.

for c:

f (3) = 6 + 9

f(3) = 15

c is not a solution. it's supposed to be 14.

for d:

f(2) = 4 + 9

f(2)= 13

d is a solution.