To Solve the problem, you need to find 3*2.75.estimate the total cost of the grapes.

The total cost of the grapes, obtained by multiplying the quantity by the unit price = $8.25.

Step-by-step explanation:

It implies that 3 grapes were purchased and the cost of each is $2.75 per unit.

Therefore, the total cost of the grapes will be given by the following 3*2.75 or quantity multiplied by unit price,

which is equal to 8.25 after multiplication.  Then the dollar sign or any other currency sign is added to depict value in monetary terms.

answer set (b) 0.5, 3/4 80% is in order from least to greatest.  

step-by-step explanation:

in order to compare rational numbers to each other, it is much easier if they are in the same form.   typically, the best form in which to evaluate rational numbers is in decimals.   in order to convert a percent to a decimal, you would divide the given percentage by 100.   you can also accomplish the conversion by moving the decimal point over two places to the left.   for example, the decimal value of 80% is 80/100, or 0.8.   in order to convert a fraction to a decimal, you need to divide the numerator by the denominator.   for example, 3/4 is 0.75.   so, for choice (b) 0.5 3/4 (0.75), 80% (0.8) is the only choice in which the numbers are in order from least to greatest.  

for a it would be 24 children.

for b i don't understand the question. is it saying for each individual person they pick 5 reds to 7 greens or is it the whole group. clarify and i hope this can you.

step-by-step explanation: