A quantity with an initial value of 7800 decays exponentially at a rate of 2% every 3 years. What is the value of the quantity after 4.7 decades, to the nearest hundredth?

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.

(mc 02.03) what set of reflections and rotations would carry rectangle abcd onto itself? reflect over the y-axis, reflect over the x-axis, rotate 180° rotate 180°, reflect over the x-axis, reflect over the line y=x reflect over the x-axis, rotate 180°, reflect over the x-axis rotate 180, reflect over the y-axis, reflect over the line y=x

Anna is constructing a line segment that is congruent to another segment ab. for the construction, which tool should be used to mesure segment ab