Roxy use a calculator to evaluate (18 + 2) * (49 - 34) - 63 / 9 by entering 18 + 2 * 15 - 7 into a calculator which statement is true?

: the calculator will show the correct value because two should be multiplied 15 first

: the calculator will show the correct value because 7 should be subtracted from 18 first

: the calculator will show an incorrect value she should have added 18 and 2 and then enter c 20 * 15 - 7 into the calculator

: the calculator will show an incorrect value she should have subtract 7 from 15 then enter c 18 + 2 * 8 into the calculator