13/5 divided by 1/4 = a. 3/20 b. 1 3/20 c. 1 2/5 d. 6 2/5

Find the value of p for which the polynomial 3x^3 -x^2 + px +1 is exactly divisible by x-1, hence factorise the polynomial

How many 3-digit numbers can you write using only digits 1 and 7? (of course, digits can repeat.) how many 3-digit numbers can you write using only digits 1 and 7? (of course, digits can repeat.)

A+b= 17, ab=70, find the value of |a-b|