Brandon was given a gift card for a coffee shop. Each morning, Brandon uses the card to buy one cup of coffee. Each cup of coffee costs $4 and the original amount of money on the gift card was $20. Make a table of values and then write an equation for A, in terms of x, representing the amount money remaining on the card after buying x cups of coffee.

the largest number of the four options is 1.8 x 10-2

you have it in scientific notation.

1.80 x 10-6   = 0.00000180

1.80 x 10-4   = 0.000180 (bigger, or "less small", than the former one)

so

1.8 x 10-2       = 0.0180. as you see. the "less small", or the biggest one of them all.

as you have negative exponent, it means you are dividing 1.8 by 100 (i.e. moving the dot towards left, two times).

if you had positive exponent for the scientific notation, power of tenths, you would be multiplying times 100 (moving the dot towards right) as below:

1.8 x (10)2 = 180

so. if you have negative exponent in scientific notation, move the dot toward left. if it is positive, toward right as many times the exponent tells you.

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step-by-step explanation:

0lz try yourself sorry for not answering

the answer is

a.

x = 42

y = 10

i got it down chief.