Keiko's chocolate bar is 68% cocoa. If the weight of the chocolate bar is 66 grams, how many grams of cocoa does it contain? Round your answer to the nearest tenth.

68/100=x/66 and then cross multiply

44.9 grams

Convert 68% to a decimal
68/100=0.68

Multiply the weight of the chocolate by the decimal
66*0.68
44.88

Round to the nearest tenth
44.9 grams of cocoa

Hope this helps! :)

Okay so for every triangle has three angles that always add up to 180 degrees. and to tell the difference between whether they are secure, right or obtuse is that acute: has one angle that is less than 90 degrees. right triangle means there is at least one angle that is exactly 90 degrees. and an obtuse angle has an angle that is bigger than 180 degrees. i’ll do #13 as an example: 13. 40 and 50 so if every triangle has 180 degrees 40+50= 90 degrees then180-90= 90 degrees so the third angle is 90 degrees and because this triangle has a 90 degree angle it means it is a right triangle