Select the correct answer.
Given: ABC with DE||AC
Prove: AD/DB = CE/EB​

Offering 30 if a plus b plus c equals 68 and ab plus bc plus ca equals 1121, where a, b, and c are all prime numbers, find the value of abc. the answer is 1978 but i need an explanation on how to get that.

3x + 4y = 5 x- 3y = -7 solve by substitution

Factor the polynomial. b^2 + 4b + 4