PLEASE I NEED HELP ASAP Given the following exponential function, identify whether the change represents growth or decay, and determine the percentage rate of increase or decrease
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Can someone me my sister? she is in third grade. 50 points and brainlist! ones that are not answered. plz and thx!

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 means and mean absolute deviations of the individual times of members on two 4x400-meter relay track teams are shown in the table below. means and mean absolute deviations of individual times of members of 4x400-meter relay track teams team a team b mean 59.32 s 59.1 s mean absolute deviation 1.5 s 245 what percent of team b's mean absolute deviation is the difference in the means? 9% 15% 25% 65%