Which of the following is a possible relationship between number of small squares, , and Step number, ? Group of answer choices

=2+1

=2

=2+

All of the above.

How many different ways can you make change for $.50 using only nickels,dimes, and quarters?

The equation x2 – 1x – 90 = 0 has solutions {a, b}. what is a + b?

The volume of gas a balloon can hold varies directly as the cube of its radius. imagine a balloon with a radius of 3 inches can hold 81 cubic inches of gas. how many cubic inches of gas must be released to reduce the radius down to 2 inches?