Read the real-world problem. leah will purchase a dvd and a cd.
which algebraic expression could leah use to find the value of these items?
a. 2d
b. d•c
c. d+c
d. d/c

I’m stuck on this i don’t understand.

Draw a scaled copy of the circle using a scale factor of 2

Plz.yesterday, the snow was 2 feet deep in front of archie’s house. today, the snow depth dropped to 1.6 feet because the day is so warm. what is the percent change in the depth of the snow?