Answer:
$43.50
Step-by-step explanation:
<em>(Work out backward to find the answer)</em>
Remaining money => $8
=> 8 x 2 = 16
=> 16 + 4 = 20
=> 20 x 2 = 40
=> 40 + 3.50 = 43.50
= $ 43.50
Hence, she had $ 43.50 at the beginning.
Answer:
A = 78.5 cm²
Step-by-step explanation:
the area (A) of the circle is calculated as
A = πr² ( r is the radius )
here diameter = 10 cm , then r = 10 cm ÷ 2 = 5 cm , so
A = π × 5² = 25π ≈ 78.5 cm² ( to the nearest tenth )
Answer:
It is 1
Step-by-step explanation:
They all have different factors and the only one is 1.
3x+1=1 because it is a hard problem to solve just ask your teacher
