What is the value of the expression 30 − 9 + 3 − (12 ÷ 4)? Options: 18, 20, 21, 24.

5× 1/2 = ? a) more than 5 because you are multiplying by a whole number b) 5/10 because you multiply the numerator and denominator by 5 c) less than 5 because you are multiplying by a number that is more than 1 d) less than 5 because you are multiplying by a number that is less than 1

Consider the reaction 2x2y2+z2⇌2x2y2z which has a rate law of rate= k[x2y2][z2] select a possible mechanism for the reaction.

The sum of these consecutive integers is equal to 9 less than 4 times the least of the integer. find the three integers