Math !
part a) write an expression that represents the following expression using the variable b. "billy's age in 8 years."
part b.) write and equation using the expression above if in 8 years billy will be 21 years old.
part c.) how old is billy now?
part d.) write and solve a word problem that matches the equation a- 6=10

answer: answer: d) v= 1/6 bh  

step-by-step explanation:

since according to the given question,   a pyramid is placed inside a prism.

step-by-step explanation:

$655.61 which is option c

step-by-step explanation:

price of house =   $146,000

initial rate = 3.5%

mortgaged paid in this = 3.5 % of $146,000

                                        =

                                        =$5110

the total years would be = 7

total mortgaged paid = 7 * $5110

                                      =$35770

remaining money = $146000-35770

                                =$110230

new mortgaged payment = 5 % of 110230

                                            =  

                                            =$655.61