Vincent is ordering accessories for his surfboard. a set of fins cost $24 each and a leash costs $15. the shipping cost is $4 per order. the expression 24b + 15b + 4 can be used to find the cost in dollars of buying b fins and b leashes plus the cost of shipping.

Here, b represents buying fins and leashes.

As per the statement:

Vincent is ordering accessories for his surfboard. A set of fins cost $24 each and a leash costs $15.

A set of fins cost $24 each and a leash costs $15

⇒ Cost of total fins = 24 b and Cost of total leashes = 15 b

It is also given that: The shipping cost is $4 per order.

then;

Cost in dollars of buying b fins and b leashes plus the cost of shipping

=

Therefore, the expression   represents the cost in dollars of buying b fins and b leashes plus the cost of shipping.

10

(a)

True.

The given terms in the expressions are 24b, 10b and 4

(b)

True.

Like terms are those which have same variable.

Like terms in the given expression are: 24 b and 15 b

(c)

False.

Combine like terms in the given expression:

Therefore, the simplified given expression is,  

area of part 1:

a1=base*height/2=(8+2)*(8-2-2-1)/2=10*3/2=15 ft^2

area of part 2:

a2=length*width=(8+2)*1=10 ft2

area of part 3:

a3=length*width=8*2=16 ft2

total shaded area : a1+a2+a3=41 ft2

total area of the reactangle : a=16*8=128 ft2

total area of the nonshaded region : 128-41=87 ft2

the answer is 48m^2!

step-by-step explanation: