Raul calculated that he would spend $125 on school supplies this year. he actually spent $87.50 on school supplies. what is raul’s percent of error?
a: 42.9%
b: 37.5%
c: 30%
d: 3%

for any of you who need the translation here it is

step-by-step explanation:

find the angular size of the equatorial radius of the earth, if the horizontal parallax of the sun

step-by-step explanation:

the multiplicative inverse of a fraction a/b is b/a. for the multiplicative inverse of a real number, divide 1 by the number. for example, the reciprocal of 5 is one fifth 1/5 or 0.2, and the reciprocal of 0.25 is 1 divided by 0.25, or 4.