Dorsey is filling a triangular pyramid with colored sand for
an art project. He has a total
of 605 cm3 of sand. How
many cubic centimeters of sand
will he have left over after
filling the pyramid below?

the 2 figures are congruent bc if you reflect abcd over the y axis then over the d axis the figures overlap

answer: first option i.e. 'a' is correct.

step-by-step explanation:

since we have given that

number of minutes to wrap a small gift box = 4 minutes

we need to find the number of gifts to be wrapped in 5 minutes

since there is a direct variation, as the number of minutes will increase with   number of gifts to be wrapped.

so, let the number of gifts to be wrapped in 5 minutes be x.

so, it becomes,

hence, first option 'a'   is correct.

3

step-by-step explanation:

answer:

it is 28 degrees colder in detroit than philadelphia.

step-by-step explanation:

what number adds to 21  

-7 + ? = 21

-7 + 28 = 21

hope it