22) 800 bacteria exist in a petri dish. If the

bacteria grow at 2.5% per hour, how long

will it take to have 2400 bacteria?

Solve it (2⋅3) ^2-5 ^2=

Solve the system by the elimination method. Check your work. 3a + 5b - 7 = 0 a - 2b - 4 = 0

The window had a length of 8 feet and width of 6 feet what is the perimeter of the window

Which of the binomals is a factor of this trinomal? x^2-x-20

1 by root 50 simplest rationalising factor

What is 15 divided 1/3

Danielle had planned her gift basket to be priced at $50 with a 40% gross margin. She forgot packaging costs which will be $3 per unit.

Vanessa earns a base

In a test Freya scores 25% more marks than Eva. Eva scores 50% more marks than Dominic. In total the three children score 140 marks. The test if out of 80. What percentage does Dominic score in the test?

Consider the sum of 3/5 + 3/4. round each fraction and estimate the sum. add the two fractions using a common denominator and then round the result. which estimate is closer to the actual answer.