Answer:
Let x be the number
double x = 2 x
square the result (2x)^2
(2x)^2 - x subtract the original number
4 x^2 - x = 33
4 x^2 - x - 33 = 0
Solve the quadratic
(1 +- (1 + 4 * 132)^1/2) / 8
= (1 + 528^1/2) / 8 = (1 + 23) / 8 = 3 using the positive exponent
Check:
(2 * 3)^2 - 3 = 36 - 3 = 33
0.0543 nearest whole number is 1 i think
Answer:

Step-by-step explanation:

Answer:
FYAB gives a better deal.
Step-by-step explanation:
Compound interest:

Continuously compounded interest:

For the quarterly compounded interest, r = 0.25%, and n = 4.






For the continuously compounded interest, r =0.23%







The quarterly compounded doubles in 277 years.
The continuously compounded doubles in 301 years.
Answer: FYAB gives a better deal.
Answer:
it will cost $10.63 for 2.5 pounds of roast beef
$12.95 for 3.5 pounds of ham
Step-by-step explanation: