Complete the explanation blank and blank 1 whole srtip could represent 1 blank and the 1/3 strip could represent blank.

Prove that the sum of two consecutive exponents of the number 5 is divisible by 30.if two consecutive exponents are 5n and 5n + 1, then their sum can be written as 30.

The midpoints of the sides of the large square are joined to form a smaller square. what is the area of the smaller square

y=2x−1 5x−4y=1 is (1,1)(1,1) a solution of the system?