The phones continue to be made with the correct working part, so the percentage
continues to increase.
What percent is reached if (round answers to the nearest tenth of a percent):
The next 50 phones are working?
%
The next 100 phones are working?
%
The next 500 phones are working?
%

answer: $201

step-by-step explanation: to get the answer, you first get 3 nieces that he sold and multiply it by 67 and get $201, so he earned $201 selling his nieces.

v = 1/3 a^2h

step-by-step explanation:

the volume is 1/3 a^2h.

answer: first option i.e. 'a' is correct.

step-by-step explanation:

since we have given that

number of minutes to wrap a small gift box = 4 minutes

we need to find the number of gifts to be wrapped in 5 minutes

since there is a direct variation, as the number of minutes will increase with   number of gifts to be wrapped.

so, let the number of gifts to be wrapped in 5 minutes be x.

so, it becomes,

hence, first option 'a'   is correct.