Answer:
1. B (40- 3n)
2.c (86)
Step-by-step explanation:
1. The shirts cost 3n. So you do 40- 3n(what the shirts cost) to find the amount of change he will recive.
2. Just plug the numbers in- 1.8(30) + 32=86.
Answer:
15
Step-by-step explanation:
The sum of the exterior angles of a polygon = 360°
Given the measure of each = 24°, then
number of sides = 360° ÷ 24° = 15
1/10 x 90 I think that's the answer
is an irrational number ⇒ answer B
Step-by-step explanation:
Let us explain the meaning of:
- A rational number is a number that can be written as a fraction
- An irrational number is a number that cannot be expressed as a fraction
Examples:
Rational numbers : 10 ,
, 0.333
Irrational numbers : π , √8 , ∛25 , (2 + √5) , 
∵ 
∵ 3 is a rational number
∴
is a rational number
∵ 
∵ There is no square root of 8
∴
is an irrational number
∵ 0.3333 can be expressed as 
∴ 0.3333 is a rational number
∵
is a fraction
∵ All fractions are rational numbers
∴
is a rational number
is an irrational number
Learn more:
You can learn more about real numbers in brainly.com/question/4853862
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