Yes there right the answer is three
Answer:
AED and DEF
Step-by-step explanation:
Both on a straight line equal 180 degrees (90 + <E)
Answer: 18
Step-by-step explanation:
Square root of 81 is 9 because 9*9=81 then 9*2=18
Answer: $47.06 if you do not round or $47.07 if you are required to round up.
Step-by-step explanation:
$43.99× .07 = 3.0793
$43.99+ $3.07 = $47.06
(If you round up then follow below)
$43.99× .07= 3.0793 (the 9 would cause you to round the 7 up to 8)
$43.99+ $3.08= $47.07
C. It is always a rational number. You cannot determine its sign without knowing the values of a and b.