Americal Expressions
. Atif puts 45 rocks in a display box. He has 54 rocks in all Which
expression can be used to find how many rocks are not in
the display box?
Đ 45 + 54 ® 45+45 © 54-45

your answer is the frist one

hop i

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.