Laura is baking a cake. the recipe says that she has to mix 64 grams of chocolate powder to the flour. laura knows that 1 cup of that particular chocolate powder has a mass of 128 grams. she added two over three of a cup of chocolate powder to the flour. should laura add more chocolate powder to make the exact recipe, or did she go over and by what amount?

we know that

The recipe says that she has to mix grams of chocolate powder to the flour

cup of that particular chocolate powder has a mass of grams

so

1) Find the mass of chocolate powder in two over three of a cup of chocolate powder

Multiply   by

so

the answer part a) is

Laura added more chocolate powder to make the exact recipe

2) Find the amount of chocolate Laura added too much to make the exact recipe

Subtract from

the answer part b) is

total amount of money that he should pay if he has not used his duty free exemption is $98

step-by-step explanation:

given a united states citizen returning to the states declares the following items at the customs office: 3 shirts at $8.50 each 2 dresses at $27.50 each 1 pair of gold cuff links at $17.50 per pair. we have to find how much he pay

cost of 3 shirts if one cost at $8.50 is

cost of 2 dresses if one cost at $27.50 is  

cost of 1 pair of gold cuff at $17.50

so, total amount of money that he should pay if he has not used his duty free exemption is   $25.5+$55+$17.50=$98