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Math

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1. Solve the proportion: z z+9
---- = ----
3 12
A. 4
b. 3
c. 2
d. 1
my answer is c ?


2. Solve the proportion: 16 = 8
--- ---
4d+2 3
A. 1^ 11
---
12


b. 1^ 1
--
3

c. 1

d. 2

My answer is D ?


3. A solution contains 2.2 liters of water. Convert this measurement to milliliters.
A. 2200 mL
B. 220 mL
C. .002 mL
D. .0022 mL
My answer is A ?

4. Brandon can drive his car 30 miles on one gallon of gasoline. How many gallons does he need for a 165-mile trip ?
A. 6 gal
B. 135 gal
C. 5.5 gal
D. 8 gal
My answer is C ?

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