In science we find that some cells divide to form two cells every hour. If you start with one cell, how many cells will there be after 7 hours?

What is the equivalent to 3.5 hours

The product of 2 consecutive odd integers is equal to 27 plus six times the sum of the integers. what is the larger integer

How much heat is required to raise the temperature of 0.765 kg of mercury by 42 °C?

from a rope that is 11.5 meters long, two pieces are cut from it that are 1 3/5 and 3 3/10 meters long. what is the length of the remaining rope

Ashley wants to divide her 63 shirts into two groups, so that the ratio of the number of shirts in the first group to the number of shirts in the second group is 3 to 4. How many shirts will be in each group?

The sum of three numbers is 6. the third number is the sum of the first and second numbers. the first number is one more than the third number. Find the numbers

What is the final amount if 975 is increased by 1% followed by a further 9% increase? Give your answer rounded to 2 DP.

82 = 2 (1-8p) step by step

Find the simple interest of $2300 invested at 7.5%for 10years

Kelly shows all the ways to make 49 as tens and ones. What ways does she show