Hello!
To find the volume of a triangular prism, we have to use the formula below:

• a, = triangle heigth (10 cm)
,
• b, = triangle base (8 cm)
,
• c, = prism heigth (12cm)
Knowing it, let's replace these values in the formula:
Answer:
A. 280
B. 185
Step-by-step explanation:
A. Buying price of share stock= $ 225
Profit = $55
Selling price= Buying price + profit

Selling price= $280
B.
Decrease in price was by $40
Buying price= $225
New selling price if he had waited till then will be=

=$185
Answer:
C
Step-by-step explanation:
the explanation is there :)
hope this helps <3
The same value as cosα
cosα=sin(90-α) and vice versa
sinα=cos(90-α)
Answer:

Step-by-step explanation:
when solving and equation with a variable, you must work backwards and do the opposite of the equation
sooo… you must subtract 4 (opposite of +4 is -4)

x=12