Answer:
5 is the answer for your question
Answer:
Hence, the expected rate of return after 1 year for Mary's portfolio is 
Step-by-step explanation:
We have,
Purchase 7 shares of stock A for $70 per share and 4 shares of stock B for $100 per share then The expected rate of return after 1 year for Mary's portfolio.
Weight invested in stock A is 

Weight invested in stock B is

The expected value of the rate of return



Answer:
Step-by-step explanation:
The table at the right shows how much tony earns per hour for his summer jobs one day tony spends 3 hours running errands he wants to use the money from his job to buy two banners.
im not getting it? what are the tools?
Answer:
Step-by-step explanation:
Let w be the width
Length = 3w +15
Perimeter = 94 cm
2*(length + width) = 94
2*(3w+15 + w) = 94
2*( 4w + 15) = 94
4w + 15 = 94/2
4w +15 = 47
4w = 47 -15
4w = 32
w = 32/4
w = 8 cm
Length = 3w +15 = 3*8 + 15 = 24 +15 = 39
Length = 39cm
Area = length * width = 39*8 = 312
Area = 312 cm²