The amount of apples Blake harvested went from 500 lb in 2009 to 425 lb in 2010. Find the percent decrease.

15%

Step-by-step explanation:

The first step is to calculate the decrease

= 500-425

= 75

The percentage decrease can be calculated as follows

= 75/500 ×100

= 0.15×100

= 15%

Hence the percent decrease is 15%

see explanation

step-by-step explanation:

since the sequence is geometric there is a common ratio r between consecutive terms, that is

r = 4 ÷ - 2 = - 2

r = - 8 ÷ 4 = - 2

r = 16 ÷ 8 = - 2

the next term - 13 must be incorrect as it should be - 32 for the sequence to be geometric.

the first 4 terms are therefore geometric with common ratio r = - 2