Luisa trabaja en monterrey. De cada $5 que gana ahorra $3 y de cada 12 que ahorra manda $7 a su mama que vive en oaxaca. La semana pasada gano $1000. ?Cuanto le enviara a su mama?

i just took the test, the correct answer is .. 31.5 in.

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.  

just take the area of the square and then the area of the circle then subtract the circle area from the squares area

step-by-step explanation: