Mary has saved $19.80 in the past 2 weeks. at this rate, how much will she save in 10 weeks?

10/2 = 5.

Knowing this, all we have to do is multiply 19.8 by 5:

19.8 * 5 = 99

She will save $99 in 10 weeks

b. 6

step-by-step explanation:

we are given the table representing an exponential function.

we can see from the table that, as x is increasing, the value of y is increasing in the power of 6.

i.e. the following relation is obtained,

x = 1, y = 6

x = 2, y = 36 =

x = 3, y = 216 =

x = 4, y = 1296 =

x = 5, y = 7776 =

so, the geometric series obtained is .

thus, the common ratio is given by = = 6.

hence, the common ratio is 6.

mean, 40.6

step-by-step explanation: