Monica paid sales tax of $4 when she bought a new bike helmet. If the sales tax rate was 8%, how much did the store charge for the bike helmet before tax?

Savannah had 40 iris blooms last year this year she had 15% more iris blooms how many more hours blooms did savannah have this year

Anew test for ra is being developed. the test is administered to 750 patients with ra and 750 without ra. for the sake of the question, assume the prevalence of ra in this population is 50%. of the 750 patients with ra, 575 have a positive result. of the 750 patients without ra, 150 have a positive result. what is the positive predictive value of the new test? a575/(575+150) b. 600/(600+ 150) c. 575/(575+125) d. 600/(600+ 125)

You eat $0.85 for every cup of hot chocolate you sell. how many cups do you need to sell to earn $55.25