Specify what the variable stands for, write and equation, and solve. a sewing project requires material costing $44 plus some tassels. If the material and tassels are to be purchases with four $20 bills, how many tassels can be purchased if they cost $2.40 each?

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