The price of a holiday was decreased by 12% to £600. What was the price before the decrease? Give your answer to the nearest penny

$681.82

Step-by-step explanation:

Use the formula, new price=(1 - r)original price

Our new price is 600

r stands for our rate/percentage so here it would be our 12%.

Turn 12 into a decimal, 12/100 gives us 0.12.

We don't know our original price so for now, we'll make it x. So it'll be 600 = (1-0.12)x

Now solve for x. (original price)

600 = (1-0.12)x                          

1 minus 0.12 gives us 0.88, remove the parenthesis. So we'll get

600 = 0.88x

Divide both sides by 0.88. 600 divided by 0.88 gives us 681.8181818 repeating. We round to the nearest penny so, therefore, 681.82.

681.82 = x

option c) graph of line going through 1, 4 and 3, 10

step-by-step explanation:

let y equal to margo's coin collection

let x equal to number of years

at the begining x=0, y=1 → point=(x,y)→point=(0,1)

she adds 3 coins per year, then y=1+3x

at x=1, y=1+3(1)=1+3→y=4→point=(x,y)→point=(1,4)

at x=3, y=1+3(3)=1+9→y=10→point=(x,y)→point=(3,10)

the graph of line going through (1, 4) and (3, 10), then the option c is the correct.