Answer:
i think its 102 or 120-18
Step-by-step explanation:
i think cauee 10% of 120 is 12 and half of ten percent is 5 and 5% is 6
she will save $18
find 10% of the number. then find 5%. add the two answers together and you get $18.
10% of $120 = $12
5% of $120 = $6. (half 10%)
$12 + $6 = $ 18
10 km
two-fold
second equation :
( 20x² — 2xy — 42y² )
expand the two brackets.
Since "a" is on the top and the bottom, you can simplify that