So in this case the working would be 35-20= 15
Now we put in the formula. (15/20)*100 which gives us 75. 75% is your percentage change
Answer:
32 minutes
Step-by-step explanation:
all you have to do is know that the unit rate is 4 so multiply 8 and 4 to get 32
Answer:
45x^2-328x+124
Step-by-step explanation:
Answer:
0,78
Step-by-step explanation:
Answer:
12-157.5 13-6ft
Step-by-step explanation:
the first one just look up 65% of 450 and minus the number you get by 450
the second one do the butterfly method

the heights on top and shadows on bottom
12x=72
x=6