Solve each problem. Explain or show your reasoning. What is 25% of 160? What is 39% of 200? What is 150% of 32? 13 is 50% of what number? 18 is 120% of what number? 21 is what percentage of 30?

The scatter plot graph shows the average annual income for a certain profession based on the number of years of experience which of the following is most likely to be the equation of the trend line for this set of data? a. i=5350e +37100 b. i=5350e-37100 c. i=5350e d. e=5350e+37100

If the speed of an electromagnetic wave is 100,000 cm/s and its wavelength is 100 cm, what is its frequency? a) 100,000 cycles per second (hz) b) 1 × 10-3 cycles per second (hz) c) 10,000,000 cycles per second (hz) d) 1,000 cycles per second (hz)

Find the zero function by factoring (try to show work) h(x)=-x^2-6x-9