What is 700 rounded to because i do not no it is very hard and i really need help and i really do not now how to round like it is really really hard so i really wish you will help me please

Which speed is the fastest (use 1 mile ≈ 1.6 kilometers)? a. 12 miles/hour b. 18 feet/second c. 19 kilometers/hour d. cannot be determined

A) if $50000 is invested in a bank account that pays 9.3% of interest compounded on a six-monthly basis, how much money will be in the account after 3 and 12 years? b) if matusalen's father had put $2.0 in the bank when he was born and there, how long would matusalen have had to his death (969 years later) if the interest was 7% per year composed each month and weekly?

Susie wants to take her friend out for lunch. she wants to spend $9.75 each person. how much will she spend in all.