cho hệ đầy đủ 3 biến cố {a, b,c} vói p(a)=0,25; p(b)=0,45.biết biến cố f thỏa mãn : p(f/a)=0,45; p(f/b)=0,15; p(f/c)=0,2. tính p(f)

Neveah and clint are baking muffins for the bake sale. they need to bake 30 muffins for their display case. clint has baked 4 so far, and neveah has baked 7. how many muffins (m) do they have left to bake? show your work!

Julie buys 2kg of apples and 7kg of pears ? 12.70. the pears cost ? 1.30 per kilogram what is the price per kilogram of the apples? show your working out

Find the value of x to the nearest tenth. a. 4.5 b. 5.4 c. 6.3 d. 7.2