8mi. 133 yd. 2 ft. + 5 mi 107 yd. 2 ft.

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.

Iq scores for adults age 20 to 34 years are normally distributed according to n(120, 20). in what range does the middle 68% of people in this group score on the test?

For f(x)=2x+3 and g(x)=x^2- 8 find (f+g) (x)