5 This is Elmer's work on a multiplication problem: 179
X 64
716
+
10 7 4
1,790

a. Use estimation to explain why Elmer's answer is not reasonable.

b. What error do you think Elmer made? Why do you think he made that error?

c. Find 179 x 64 using a correct version of Elmer's method. Then show another way of doing it to help Elmer
see why your answer is correct.

The sum of two numbers is 12 and their difference is 18 what are the two numbers

You spin the spinner shown below once. each sector shown has an equal area. what is p(beaver ) p(beaver)? if necessary, round your answer to 2 2 decimal places.

Solve the problem. a student earned grades of c, a, b, and a in four different courses. those courses had these corresponding numbers of credit hours: 4, 5, 1, and 5. the grading system assigns quality points to letter grades as follows: a = 4, b = 3, c = 2, d = 1, and f = 0. compute the grade point average (gpa) and round the result to two decimal places. 3.40 3.50 8.75 2.18