a dime is 1 of a dollar.
(a) how many dimes are in a dollar?
(b) how many dimes are in three dollars?

A. 10 dimes

B. 30 dimes

Step-by-step explanation:

One dime is ten cents so 10 dimes are 100 witch equals 10

So if 10 dimes is one dollor 30 would be three dollars

a 10

b 30

Step-by-step explanation:

a dime is ten cent a doller is 100 cents

ten times ten = 100

last option

step-by-step explanation:

given that δdef is right and isoceles,

assuming that side df is the hypotenuse means that de an ef are the other 2 sides that intersect at 90° and are of equal length.

because they are of equal length, we can say that they are congruent

because they intersect at 90°, their slopes must be opposite reciprocals.

only the last option satisfies these conditions.