Dora found 6 less than 3 times the number
of shells that Tess found at the beach. Let
s represent the number of shells that Tess
found. Which expression represents the
number of shells that Dora found?

answer:  

step-by-step explanation:

here x represents the height of the pole,

and, the height of the shadow of the pole is 12 feet.

also, the angle of elevation from the top of the pole is 40°,

therefore,

by the low of sine,

which is the required equation for finding the value of x,

thats not a system of equations, that is a solution

answer: its the third option.

step-by-step explanation:

i just took the test.

change of stock price/initial stock price on friday * total stock value = change of stock value

0.89/73.73 *x = 42.72

x=3539.04 = total stock value at initial stock price on friday .

total stock value at initial stock price on friday/ initial stock price on friday = number of shares

3539.04/73.73 = 48 shares

they own 48 shares of this stock