1) Alexis runs 7 1/2 yards every 21/6 seconds. How long will it take her to run 50 yards? 2)It takes lily 4/5 of an hour to read 100 pages of her book. how many pages can she read in 2 2/5 hours?
3) Logan wants to buy 30 1/2 pounds of grapes. Store A has them priced at $4.00 for 2 2/3 pounds. Store B has them priced at $3.00 for 1 5/6 pounds. What is the least he will have to pay for his grapes?
(Pleasee help on these three questionsss :(((!! )

it would open into a square depending on the type of envelope i’m not sure about the second part

step-by-step explanation:

this can be solved first with pythagorean theorem, which tells us to square both legs of the triangle and sum it. this will be equal to the square of the hypotenuse.

the hypotenuse is the side "opposite" the 90 degree angle, which is x.

so we can write using pythagorean theorem,

simplifying:

to further simplify this radical, we need to use the property  

thus

i believe a. 12x≥120 is the answer

step-by-step explanation:

to determine whether a given function is even, we simply substitute x with -x in the expression. if the result after simplification is identical to the original equation, then the function is said to be even other wise odd.

f(-x) = (-x)^2 - (-x) + 8

      = x^2 + x +8

the resulting function is not identical to the original one;

f(-x) ≠ f(x)

therefore, f(x) is not an even function