1.convert 12/7 to a decimal up to tenths digit
a.1.5
b.1.7
c.1.9
d.1.12

2.what is the simplest form of 0.6 in fraction form?
a.2/3
b.3/5
c.4/7
d.5/9

3.find the least common dinaminator of fractions whose denominators are 13 and 26.
a.13
b.16
c.26
d.39

4.find the sum of (-15 3/5) + (-12 4/5).
a.-28 2/5
b.-2 4/5
c.2 4/5
d.28 2/5

5.sarah had php 500. she spent 1/5 of her money on chocolates and 1/4 of the remainder on biscuits. how much money is left with her?
a.php 100
b.php 200
c.php 300
d.php 400

6.what is the sum of the rational number 2 1/15 and 4 3/15?
a.4 4/15
b.5 4/15
c.6 4/15
d.7 4/15

7.simplify 3 3/10 × (-15).
a.-49 1/2
b.-48 1/2
c.48 1/2
d.49 1/2

8.if the sum of two rational numbers is 8 and if one of the numbers is 13/7, find the other number.
a.41/7
b.42/7
c.43/7
d.44/7

9.aling nena bought 550 kg of rice to be distributed among her 44 co-homeowners in their village. how many kg of rice is received by each homeowner?
a.10
b.10 1/2
c.43/7
d.44/7

10.between what two intergers is the √54 located?
a.8 and 9
b.7 and 8
c.6 and 7
d.5 and 6

11.if you know the area of a square, how do you find the side length?
a.square the area
b.devide the area by 2
c.devide the area by 4
d.take the square root of the area

12.ben was asked to get the estimated square root of 20 inches to the nearest hundredth for his project in math. which of the following must be his answer?
a.4.47
b.4.46
c.4.45
d.4.44

13.what do you call the numbers that cannot be represented by a ratio of two integers?
a.natural numbers
b.whole numbers
c.irrational numbers
d.rational numbers

14.sort in ascending order {-9, 7, -6, 5, -4, 3, -3}.
a.{-2, 3, -4, 5, -6, 7, -9}
b.{-2,-4, -6, -9, 3, 5, 7}
c.{-6, -9, -4, -2, 7, 5, 3}
d.{-9, -6, -4, -2, 3, 5, 7}

15.express 47 million in scientific notation.
a.0.47 × 10⁷
b.4.7 × 10⁷
c.4.7 × 10⁶
d.47 × 10⁸​