On your own paper, write a fraction with numerator 2x + -4 and denominator 5x+ 7. Write a second fraction with numerator -1x + -2 and denominator 2x + 3. Subtract the second fraction from the first fraction and write the answer in simplest form with numerator ax^2 +bx + c and denominator dx^2 +ex + f. Find the sum of a, b, c, d, e, and f, and type your answer rounded to the nearest whole number.

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.

b mark me branliest thx

step-by-step explanation: