What is the sum of the last four terms of the series 97 + 99 + 101 +. . + 121a. 400b. 472c. 418

If 20% of a number is 35, what is 50% of that number?

Prove that the value of the expression 7^8–7^7+7^6 is divisible by 43.

50 people men and women were asked if they watched at least one sport on tv. 20 of the people surveyed are women, but only 9 of them watch at least one sport on tv. 16 of the men watch at least one sport on tv. make a a two-way table and a relative frequency table to represent the data.