What is the value of k in the product of powers 10^-3×10×10^k=10^-3=1/10^3

Identify an equation in point slope form for the line perpendicular to y=3x+5 that passes through (4,-1)

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

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?