Sandra and tori met for dinner in downtown dover. sandra did flat-rate valet parking for $18. tori went to another valet and paid $6 up front and $2 for every hour, including the first hour. ultimately , the friends ended up paying the same amount . how long sis they stay ? how much did each one pay ?

answer:

6 hours

each paid $18

step-by-step explanation:

18 = 6 + 2x

x = 6

the answer is c hope it

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.