A 4-person grievance committee is to be selected out of 2 departments, a and b, with 12 and 30 people, respectively. in how many ways can the following committees be selected? complete parts (a) through (e) below. (a) 3 from a and 1 from b 6600 (b) 2 from a and 2 from b 28710 (c) all from a 495 (d) 4 people regardless of department 111930 (e) at least 3 from department a nothing

One-third of the people from country a claim that they are from country b, and the rest admit they are from country a. one-fourth of the people from country claim that they are from country a, and the rest admit they are from country b. in a combined census of the two countries, one-half of the total claimed to be from a. what is the ratio of the populations of country a to that of country b.

At $1.32 million, they closed last month percent above what they paid in 2007." how much did they pay in 2007?

Drag each expression to the correct location on the solution. not all expressions will be used. consider the polynomial 8x + 2x2 - 20x - 5. factor by grouping to write the polynomial in factored form.