Answer:
Step-by-step explanation:
The formula for area of a rectange is lw, where l is length and w is width. Since x-4 and 5x+2 are the sides, we can multiply them together to give us the area. We do (x-4)(5x+2). We use the FOIL method (First Outside Inside Last) and get 5x^2-18x-8.
Answer:
Step-by-step explanation:
16 divided by $3.50 = 4.5
Answer:
8/49
Step-by-step explanation:
4/7 ÷7/2
Copy dot flip
4/7 * 2/7
Multiply the numerators
4*2 = 8
Multiply the denominators
7*7= 49
numerator over denominator
8/49
Answer:
A = 
- B
Step-by-step explanation:
Given
R = x(A + B) ← divide both sides by x
= A + B ( subtract B from both sides )
- B = A
Answer:
The expense of the visit to dental specialist is equivalent to (50+100n)
Step-by-step explanation:
