Will award brainlest and 15 points!! A Contact lens has a circular shape and diameter of 14 millimeters (mm). Which measurement is closest to the circumference of the lens?

A. 88 cm
B. 616 cm
C. 154 cm
D. 44 cm

What percent of 18 is 24? and plz explain thx.

Astudy claims that the mean age of online dating service users is 40 years. some researchers think this is not accurate and want to show that the mean age is not 40 years. identify the null hypothesis, h0, and the alternative hypothesis, ha, in terms of the parameter μ. select the correct answer below: h0: μ≥40; ha: μ< 40 h0: μ≤40; ha: μ> 40 h0: μ≠40; ha: μ=40 h0: μ=40; ha: μ≠40

Which line on the graph could represent this scenario?