Anthony purchased 6 fruit bars and 3 chocolate-nut bars for a camping trip. he spent $4.12 on the bars. anthony wrote the following equation:   . what did he define as the variable x?

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.

Determine the difference: 3.2 × 1010 – 1.1 × 1010. write your answer in scientific notation.

Solve the problem. a student earned grades of c, a, b, and a in four different courses. those courses had these corresponding numbers of credit hours: 4, 5, 1, and 5. the grading system assigns quality points to letter grades as follows: a = 4, b = 3, c = 2, d = 1, and f = 0. compute the grade point average (gpa) and round the result to two decimal places. 3.40 3.50 8.75 2.18