Rebekah manages a yoga studio that charges each customer a one-time initial fee of \$35$35dollar sign, 35 and an additional fee of \$12$12dollar sign, 12 per class taken. Rebekah's goal is for each customer to spend at least \$100$100dollar sign, 100 at the studio, and she wants to know the minimum number of classes a customer needs to take to meet that goal.

b

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.

765238725478629038640962136509762139056074

step-by-step explanation:

64087235609746097215074621039754021037