The area of rectangular piece of metal is 30 centimeters. the peice is 4 centimeters wide. how long is it

7.5

Step-by-step explanation:

30/4=7.5

Step-by-step explanation:

The formula of an area of a rectangle:

w - width

l - length

We have

Substitute:

        divide both sides by 4

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.