Answer:
a and d
Step-by-step explanation:
brainliest if you want :)
100 is 101 to the nearest ten
A constant in an algebraic expression is defined as a term that does not change during the expression, so, in other words, a term that does not have a variable in it. so the constants are
12
-3.7
1/3
C. CONCAVE
A mirror with a reflecting surface that caves inward is said to be CONCAVE.
Clue: caves inward. )(
Convex has an outline of surface that cave outward. It is like the outside of the circle or sphere. ()
8 x 9 = 72
So 72 is your answer
