Answer:
Sure I'll try to help!
(-3.14, -5)
Step-by-step explanation:
Y equals 7 because 3=x times 5 is 25- 8 is 7
Let x be the initial amount of money. We know that mum spent 2/3 of this amount, so she's left with

Of this remainder, only 1/4 was deposited, which is

And this amount equals 20, so we have

Answer:
B. 54 Joules
Step-by-step explanation:
Yes you can assume they are similar because the sides that correspond with one another are half of the big triangles measurements. 16/2=8 12/2=6 etc.