Can someone tell me the answer to 4/5 x (- 5/7) please?

What is the multiplicative rate of change of the exponential function shown on the graph?

Jamie went to home depot.she bought 25 bags of soil that cost $9 per bag.she bought 15 pots at $8 each, and she bought 23 bags of pebbles at $15 each.she used a coupon that gave her $5 off for every 100 dollars she spent. how much did jamie pay at the end?

Abacteria population is tripling every hour. by what factor does the population change in 1/2 hour? select all that apply