What is the initial value? Did the value increase or decrease?
What is the percent of change?
y=7500(1+0.3)^x
y= (0.85)^x
y=900(1.27)^x
y = 24000(1-0.8)^x
y=250000(0.65)^x

the amount you'd have after the work is $1.55

step-by-step explanation:

you subtract 95% from $31.

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

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

hope it