1 One electron has a mass of 9.1 x 10-31
grams.
Find the mass of 250 of electrons.
Orange

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

The amount spent on food and drink by 20 customers is shown below what is the modal amount spent and the median amount spent? 40 25 8 36 18 15 24 27 43 9 12 19 22 34 31 20 26 19 17 28

The difference of three and the reciprocal of a number is equal to the quotient of 20 and the number. find the number.