They are comparing the number of cats in teh shelter to the number of dogs in the shelter.
Answer:
We use negative values for the money Arleen spends.
a) We determine the change to the value on her gift card:
4(-35)+(-9)= -140+(-9)=-149
b) We determine the amount on money she has left on the gift card after renting the tiller and buying the rake:
200+(-149)=51
Since she has got $51 on her gift card and a wheelbarrow is $50 she is able to buy it:
51>50
RESULT
a) -$149 less b) yes
Step-by-step explanation:
Let x = the number of marbles for Phil
Then 3x = the number of marbles for Peter
Together they have 3x+x=48 or 4x=48 and x=12
So Phil has x = 12 marbles and Peter has 3x, let x = 12, 3(12) = 36 marbles.
Peter has 24 more marbles than Phil.
No. of layers= 2^7 = 128 layers
thickness = 128*0.1 = 12.8mm
hope it helps.
Answer:

Step-by-step explanation:
Given: 
To find: c
Solution:
At
:
(i)
At
:
(ii)
At
:
(iii)
On subtracting (i) and (ii),
(iv)
On subtracting (i) and (iii),

On subtracting (iv) and (v),

Put a=3 in (iv)

Put
in (iii)
