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Pachacha [2.7K]
3 years ago
5

Help with these two please or one??

Mathematics
1 answer:
hodyreva [135]3 years ago
8 0
<span>Anna learns in her science class that the human eye blinks an average of 4,200,000 times a year. What is this number expressed in scientific notation?</span>
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Textbooks are exempted from PST in Ontario. If the total cost of a book
Andrei [34K]

Answer:

4.24

Step-by-step explanation:

Total price = price of the book + 5% of the price of the book

T = total price   P = price of the book G = GST

T = P + G

and

G = 5% of P = 0.05P

therefore

T = P + 5%P = 1P + 0,05P = 1.05P

P = T/1.05 = 89/1.05 ≅ 84.76 (it is 84.7619047619)

G = 89 - 84.76 = 4.24

8 0
3 years ago
SQUARE ROOT OF 16<br><br>THANKS​
Mila [183]

Answer:

4

Step-by-step explanation:

FAQs on the Square Root of 16

The square root of 16 is 4.

8 0
2 years ago
Read 2 more answers
A car dealership decreased the price of a certain car by 13%. The original price was $45,400.
ira [324]

Answer:

5902

Step-by-step explanation:

Solution: 13% off 45400 is equal to (13 x 13) / 100 = 5902.

5 0
3 years ago
Allison is evaluating the expression -5-(-2) using integer tiles. She begins with 5 negative tiles as shown. What should Alison
IrinaVladis [17]

Answer:

-3

Step-by-step explanation:

Allison has 5 negative tiles

Next she  needs to remove 2 negative tiles

What is left is 3 negative tiles

(-5) -(-2)  =   (-5+2)=-3

3 0
3 years ago
Read 2 more answers
Assuming thay line WXZ is straight, what are the measure and classification of angle YXZ?
Talja [164]
It’s b.
because it’s would be 180-45
8 0
3 years ago
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