Maddie has read 30 pages of a book. her plan is to read 40 pages each day from this point on. write an equation in slope-intercept form to represent the situation.

P = 30 + 40d

Step-by-step explanation:

30 pages that Maddie has read of a book. Her plan is to read 40 pages each day from this point on.

If we represent the time as d days and the total number of pages that Maddie has read is given by P, then the equation that can model the situation is  

P = 30 + 40d (1) in slope-intercept form.

Here, 30 pages are the initial value of the function i.e. at d = 0, P = 30 and 40 represents the number of page reading per day. (Answer)

what is all that apply?

the largest number of the four options is 1.8 x 10-2

you have it in scientific notation.

1.80 x 10-6   = 0.00000180

1.80 x 10-4   = 0.000180 (bigger, or "less small", than the former one)

so

1.8 x 10-2       = 0.0180. as you see. the "less small", or the biggest one of them all.

as you have negative exponent, it means you are dividing 1.8 by 100 (i.e. moving the dot towards left, two times).

if you had positive exponent for the scientific notation, power of tenths, you would be multiplying times 100 (moving the dot towards right) as below:

1.8 x (10)2 = 180

so. if you have negative exponent in scientific notation, move the dot toward left. if it is positive, toward right as many times the exponent tells you.