1.Fill in the blank to make the equation true. Show your work.____ m = 12.1 km
a. 0.00121
b. 12,100
c. 121
d. 1,210
2.Fill in the blank to make the equation true. Show your work.____ mg = 15.6 cg
a. 1.56
b. 15.6
c. 156
d. 1,560
3.Simplify the expression. 2/5+3/8
a. 5/13
b. 5/40
c. 31/40
d. 1/8
4.implify the expression.-2/3+2/7
a. -0/10
b. -8/21
c. -20/21
d. 7/21
5.simplify the expression.-2/3+2/7
a. -0/10
b. -8/21
c. -20/21
d. 7/21
5.Simplify the expression. 9 1/8+ 5 1/4 *
a. 14 12
b. 14 3/8
c. 14 2/12
d. 14 1/6
6.Simplify the expression. -1/5 + (-3/8)
a. -23/40
b. -7/40
c. -4/13
d. -2/3
7.Simplify the expression. 1/3-1/8
a. 0
b. 5/24
c. -1/5
d. -2/11
8.Show your work for the following: 2 1/3 - 3/4
9.Show your work for the following: 8 1/6 + 7 3/12