Janet uses a 40% discount coupon to buy half a dozen of cakes. After the discount, she pays £21. How much discount did she get?

Please help me...Thank youu

How many heads would you expect if you flipped a coin twice? first, fill in the table below with the correct probabilities. hint: the sample space for flipping a coin twice is {hh, ht, th, tt}. a = b = c = f

Mr. jones determined that the equation y = 98 - 16/5 x could be used to predict his students' unit test scores, based on the number of days, x, a student was absent during the unit. what was the meaning of the y-intercept of the function? (by the way the 16/5 is a )

Can someone plz me with 11,12,13 plz show work