In the expression -5g12 which part is the base?

Before simplifying, how many terms are there in the expression 2x - 5y + 3 + x?

Aproduction manager test 10 toothbrushes and finds that their mean lifetime is 450 hours. she then design sales package of this type of toothbrush. it states that the customers can expect the toothbrush to last approximately 460 hours. this is an example of what phase of inferential statistics

Aquadratic equation in standard from is written ax^2= bx+c, where a,b and c are real numbers and a is not zero?