7/8 hr class 1/2 is for playing 1/5 is for instruction 3/10 is for cooling down and warm up. how much was spent for cooling down and warmup?

step-by-step explanation:

given expression is .

now we need to simplify the given expression .

we know that square root is equivalent to the power 1/2. so that means we can take half of the exponents to get the square root of given expression.

expanding that will give a very very large number so let's keep answer in exponent form.