Which of these pairs of quantities are proportional to each other? For the quantities that are proportional, what is the constant of proportionality? Radius and diameter of a circle
Radius and circumference of a circle
Radius and area of a circle
Diameter and circumference of a circle
Diameter and area of a circle

1c) the number 131 is a term in the sequence defined by the explicit rule f(n)=5n-4. which term in the sequence is 131? 2a) write the first four terms of the function f(n)=n^2-1 2b) what is the 10th term of the sequence defined by the explicit rule f(n)=n^2-1 2c) the number 224 is a term in the sequence defined by the explicit rule f(n)=n^2-1. which term in the sequence is 224?

Yo need asap pls ! markin da brainiest too !

Cal's go cart has a gas tank with the dimensions shown below. he uses a gas can that holds 11 gallon of gas, to fill the go cart tank. 11 gallon = 231 inches^3 how many full gas cans will it take to fill the go cart's gas tank?