There are 9 counters in a bag. 7 of the counters are green. 2 of the counters are blue. ria takes a random two counters from the bag. work out the probability that ria takes one counter of each colour. you must show your working.

The parabola x= √y-9 opens: a.)up b.)down c.)right d.)left

Adecibel is a logarithmic unit that can be used to measure the intensity of a sound. the function y = 10logx gives the intensity of a sound in decibels, where x is the ratio of the intensity of the sound to a reference intensity. the reference intensity is generally set at the threshold of hearing. use the graphing utility to graph the decibel function.a whisper has a sound intensity of 30 decibels. use your graph to you complete the following statement. the sound intensity of a whisper is times the reference intensity.

Eliza wants to make $10,000 from her investments. she finds an investment account that earns 4.5% interest. she decides to deposit $2,500 into an account. how much money will be in her account after 14 years?