Roger bought a pair of leather gloves that originally cost $30.00 on sale at a 30% discount. How much money did Roger save?
A.
$21.00
B.
$3.00
C.
$9.00
D.
$6.00

C, my friend. Trust the BlueDragon

Step-by-step explanation:

30% of $30 is 9, $30-$9 is $21.00

He saved $9.00

the dimensions are:

step-by-step explanation:

we want to find the dimensions of a rectangular box with volume of

we factor to obtain;

we rewrite the rightmost factor to obtain;

recall that:

we apply difference of two squares formula to obtain;

hence the dimensions are

∠acb = 8°

step-by-step explanation:

∠xba lies on the circle and is half the measure of the intercepted arc ax

hence

measure of arc ax = 2 × 42° = 84°

∠acb is outside the circle and is

∠acb = (arcab - arcax ), hence

∠acb = 0.5 (100 - 84) = 0.5 × 16° = 8°