Robert bought 2 movie tickets for $10 Deion spent $20 on 4 movie tickets

Pls if a cow has a mass of 9×10^2 kilograms, and a blue whale has a mass of 1.8×10^5 kilograms, which of these statements is true?

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?

Ade and abc are similar. which best explains why the slope of the line between points a and d is the same as the slope between points a and b?