Answer:
10$
Step-by-step explanation:
25 x (60/30) = 50, and 50 is 10 greater than 40
Answer: 2
Step-by-step explanation:

Setting this equal to 0 yields
.
When
, 
28 times 5 because volume= length times width times height. Brainliest?
Answer: u=7
Step-by-step explanation:
First multiply 6 by u and 7 to get 6u+7
next add -8u + 6u and get -2u
then subtract 42 from both sides of the equation (28-42)
finally divide -2u from both sides of the equation and get 7
S=252t, j=672(t-2), when the jet catches the small plane j=s so:
672(t-2)=252t
672t-1344=252t subtract 252t from both sides
420t-1344=0 add 1344 to both sides
420t=1344 divide both sides by 420
t=3.2 hours (3:12)