It is given in the question that, a rocket travels 2.8x10^4 km h^-1.
It means in one hour, the rocket travels

And we have to find how much the rocket travels in 5 hours, and for that we have to do multiplication, that is

The double of 25 is (25+25), or (25x25). 7 less would be (25+25) -7. Figure out what 25 + 25 is, then subtract 7 from your answer.
A camp has 24 kids in total. In the main hall there were 5 boys out of 9 students in total and in the cafeteria there were 12 girl out of 15 kids in total.
Write the ratios in different formats EX: a to b, a:b, and a/b
-28x-11
Step-by-step explanation:
10x-38x=-28x
+36-47=-11
so the answer is -28x-11