A man buys a certain number of litchies at 20 per rupee and equal number at 30 per rupee. he mixed them and sold them at 25 per rupee. Find his gain or loss percentage.

Convert to standard form: 9x^2 = 16y^2 - 18x + 64y - 71 = 0

One math student, John, can solve these 6 math problems in 20 minutes while another student, Juaquine, can solve them at a rate of I problem per 4 minutes. Who works faster?

Suppose that the p-value of a test is 0.035. Which of the following is correct regarding the conclusions we can draw? We can reject the null hypothesis at both at a significance level of 0.01 and at a significance level of 0.

In the sequence generated by the formula an = (-1) ^n+1 (5) ^n, which of the following terms has the greatest value? Assume an > 0. a. an b. an+5 c. an+10 d. an+15

Wilma can mow a lawn in 80 mintues. Melissa can mow the same lawn in 120 minutes. How long does it take for both Wilma and Melissa to mow the lawn if they working together?

The lengths of nails produced in a factory are normally distributed with a mean of 5.13 centimeters and a standard deviation of 0.04 centimeters. find the two lengths that separate the top 8% and the bottom 8%.

A village lost 15% of its cows in a flood and 10% of the remainder died of diseases. If the number left now is 7650, what was the original number of cows before the flood

A circle is cut from a square piece of cloth, as shown: A square, one side labeled as 52 inches has a circle inside it. The circle touches all the sides of the square. The portion of the square outside the circle is shaded.

If a figure is a cube, then it has eight vertices.

What percent of 52 is 12? Round your answer to the nearest tenth.