Answer:
$7
Step-by-step explanation:
"he spent 1/4 of his money..."; "2/5 of his money...", recall what the word "of" means in math terms: times (*)
since "his money" refers to the original $20 he has, this can be solved by adding the product of 20 times 1/4 and the product of 20 times 2/5 to find how much he spent on lunch and movies combined AND THEN subtracting that sum from 20:
20*(1/4) + 20*(2/5) = 5 + 8 = 13 -> 20 -13 = $7
lmk if u have any Qs
:-)
