Answer:
4
Step-by-step explanation:
Answer:
1:5 or you can write 1/5 or 1 to 5
Step-by-step explanation:
45% of 450 is 202.50
$202.50 is the price of markup
$652.50 is the selling price
1. Rewrite the number with the smaller exponent so that it has the same exponent as the number with the larger exponent by moving the decimal point of its decimal number.
2.Add/subtract the decimal numbers. The power of 10 will not change.
3. Convert your result to scientific notation if necessary.
Step-by-step explanation:
(b) If 
then
Note that 
cancel out so we get
Solving for 
we get
(c) I'm not sure what the problem is asking for but here goes. As r doubles, 
becomes
