Answer:
DB = 8
Step-by-step explanation:
Δ ADB and Δ BDC are similar so ratios of corresponding sides are equal, that is
= , substitute values
=
= ( cross- multiply )
DB² = 64 ( take the square root of both sides )
DB = = 8
A
you multiply the numbers and add the variables
the answer will be
A. 1 + 0.25y; $2.25
C