If cotθ = 0.7813, then tanθ = help asp

Linda loans her friend $250 with a 5% monthly intrest rate. how much was the whole loan?

Jessa bought a yoyo from a company that claims that, with each retraction, the string rolls up by 60% of the original length. she sets up a tape measure and throws the yoyo 3 times. her data are charted below. throw length of string (feet) 1 3 2 1.8 3 1.08 jessa wants to find the sum of the length of string after 10 throws. what is the sum of the lengths, rounded to the nearest hundredth?

What is the frequency of the sinusoidal graph?