If 35% of a number is 17.5, what is 90% of the
number?

answer:

45

step-by-step explanation:

35%=0.35

0.35x=17.5

x=17.5/0.35=50

90%=0.9

0.9*50=45

answer:

56 bottles.

step-by-step explanation:

there is 7 days in a week so just do:

7 x 8

which is 56 bottles.

answer:

option c. (3,180°)

step-by-step explanation:

rectangular form: (-3,0)=(x,y)→x=-3, y=0

polar form: (r,α)

replacing the known values:

x=-3< 0 then

replacing the known values:

then, the polar form is: (r,α)=(3,180°)