Last week Martha read two fifths of an adventure book and this week she has read another one quarter. If she still has one hundred and forty pages to read, how many

pages has the book got?

Check explanation.

Step-by-step explanation: If she has 140 pages left to read, and completed 2/5 of the book last week, and 1/4 of the book this week, then we have to divide the pages left to read (140) by the fraction of pages she read last week (2/5), and this week (1/4).

When you divide 140 by 2/5 by 1/4, you get 1400. Hope this helped!

c

step-by-step explanation:

it would be see because your formula is f(x)=6x, so 6 times 1 is 6 and you go on and the best answer is c.