Is 3 to the negative 1 power times 3 to the negative 1 power equal to 3 to the 1 power?

If an average grade of an English class rose from 70 to 80 what is the approximate percent increase

Two traffic lights turn red together at exactly 5:00 pm. One light is on a 36-second cycle from red back to red while the other is on a 48-second cycle. At what time will they again turn red together? Give the exact time, including seconds

Reference angle for 311 degrees

What is the value for x if 8x=12x

If a coin is flipped 20 times and I hit a head comes up non times what is the relative frequency of ahead coming up

The square root of a 100 is it a whole number or natural number

How do u expand 500,000

How does the volume of a sphere with radius 2cm compare to the volume of a sphere with radius 1cm

6 yards to 36 yards. Find the percent of change. Round to the nearest tenth of a percent if necessary.

Mark, evan, and cayla are playing a game. there are 3 blue marbles, 2 red, and 1 green marble. if mark pulls a blue marble he gets $1. if evan pulls a red marble, he gets a $2. if cayla pulls a green marble, she gets $3.