SAT Math Practice Question #35949 - SATify | SATify

#35949

exponents

applications

exponential

hard

90 sec

A certain type of mold grows exponentially in a petri dish, as shown in the table below. The area covered by the mold is measured in square millimeters. At this rate, on which day would the area covered by the mold reach $1.6384 \times 1 0^{8}$ square millimeters?

Day	Area covered ( $m m^{2}$ )
1	$1.0 \times 1 0^{4}$
2	$4.0 \times 1 0^{4}$
3	$1.6 \times 1 0^{5}$

• Up to 5 characters (6 if negative). Only numbers, decimal (.), fraction (/), negative (-).
• Fractions must be in lowest terms.
• Mixed numbers must be converted to improper fractions.