Please help meee <3 give u a bunch of points Tom drops an object from a height of h meters, and it hits the ground with a velocity of
v m/s as given by the function v=. If an object is dropped from a height of 22.3 meters, what is the velocity as it hits the ground?

v=_m/s

Lee has $1.75 in dimes and nickels. the number of nickels is 11 more than the number of dimes. how many of each coin does he have?

Ijust need these 2 questions answered (the second pic is just confirmation i'm not confident in that answer)

You are standing next to a really big circular lake. you want to measure the diameter of the lake, but you don't want to have to swim across with a measuring tape! you decide to walk around the perimeter of the lake and measure its circumference, and find that it's 400\pi\text{ m}400? m. what is the diameter dd of the lake?