How many times larger than
2 x 10⁴ is 10 x 10¹²?

Mat bought a phone for $100. he has to pay $30 per mouth. if he has paid $640 in total, how many mouth has he had the phone?

An arithmetic series a consists of consecutive integers that are multiples of 4 what is the sum of the first 9 terms of this sequence if the first term is 0

The value of the expression 16-^3/4 8 1/8 -6 6 1/40 1/64