420÷70%
=£600
the original price of the ring is £600
The square root of 136 is between 11 and 12. Hope I helped!
Answer with Step-by-step explanation:
f(1) = 160 and f(n + 1) = –2f(n)
⇒ f(2)= -2×f(1)
= -2×160
= -320
⇒ f(3)= -2×f(2)
= -2×(-320)
= 640
⇒ f(4)= -2×f(3)
= -2×640
= -1280
Hence, Value of f(4) is:
- 1280
This is a proportions question
12 42
------ = -------
70 ?
Cross multiply
70x42=2940
12x?=2940
294/12=245
42 cows can produce 245 gallons of milk.
So the answer is B.
Hope I helped!
