Answer:
A =

Step-by-step explanation:
∵ The diameter of the mug is 8 cm and using to cut out circular cookies
∴ The diameter of each circular cookie is 8 cm
∴ Its radius = 8 ÷ 2 = 4
∵ Area of the circle = 
∴ Area = 
Let x be the original amount as per the ques tion (7/6) x= 420thus x=420*6/7=360thus the interest earned is 420 -360=60
Step-by-step explanation:
formula is
v = 4/3 * pi * r^3
r = 8.8
answer is 2854.54
Answer:
option 2
Step-by-step explanation:
Substitute x = - 5 into f(x) , that is
f(- 5) = 4(- 5) - 7 = - 20 - 7 = - 27