In a class, 4/7 of the total number of students are boys. if 2/5 of the boys are wearing spectacles, calculate the number of girls in the class.​

When a rectangle is dilated, how do the perimeter and area of the rectangle change?

Look at this pattern ; 1,4,9, number 10000 belongs in this pattern . what’s the place of this number?

Apolice office claims that the proportion of people wearing seat belts is less than 65%. to test this claim, a random sample of 200 drivers is taken and its determined that 126 people are wearing seat belts. the following is the setup for this hypothesis test: h0: p=0.65 ha: p< 0.65 find the p-value for this hypothesis test for a proportion and round your answer to 3 decimal places.