Score for question 2: of 3 points) 2. at the grocery store checkout, you watch at the register as it rings up your purchases and coupons. the prices are as follows: $2.95 $1.19 $4.61 $1.74 $3.04 $8.83 $1.16 − $0.75 (coupon) − $1.00 (coupon) the register gives your total bill as $21.77. (a) round each price and coupon to the nearest dollar and then estimate the total amount of the bill. (b) using your estimate, determine whether the total on the register is reasonable. justify your answer

First of all, you need to round the decimal numbers (round the cents ) 
So, 
  2.95 = 3
  1.19 = 1
   4.61 = 5
  1.74 = 2
  3.04 = 3
   8.83 = 9
   1.16 = 1

  The aggregate of all them = 24
 
Now , subtract the coupon amount. 
 24-(1 + 1)
= 22

So, the total amount of bill is 22.

First, think of what you know. you know that the number t the end of the equation will need to be subtracted because it is the money he lost from buying the lawn mower. and your first two weeks have negative profit, so that tells you that c and d are wrong. now you can plug any of the weeks into a and b to see which one works. i'll start with plugging week 1 into a.this isn't right because it says your answer for week one should be -90.so now we need to try the same thing with b.this one got you the right answer, (sometimes if you only check with one of the weeks multiple will work so you need to check with more of the weeks, but it worked out fine here)this means that b is the correct answer.let me know if you need more clarification. i hope this : )