Atown has two malls. 62% of the town’s residents shop at willow creek mall. 73% of the residents shop at two harbors mall. 48% of the residents visit both malls. on any given day, what is the probability that a person chosen at random will visit either willow creek or two harbors?
a. 0.87
b. 0.64
c. 0.62
d. 0.75
e. 0.48

-4

step-by-step explanation:

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.