What is the value of 25 - 3x when x = 7 * ?

4

Step-by-step explanation:

25 - 3(7) Plug in 7

25 - 21 Multiply 3 and 7

4 Answer

Hope this helps!

you can first factor out the n to get n(1+5). we know that 1+5 is 6, so we just have 6n.

answer: - (a)

(b) 88 seats

step-by-step explanation:

given: in an auditorium, there are 22 seats in the first row and 28 seats in the second row.

thus first term=

second term=

the number of seats in a row continues to increase by 6 with each additional row.

⇒d= 6

a) given formula :

b)   let the number of seats (n) = 12

substitute n=12 in the explicit rule formed in (a)

∴there are 88 seats in 12 rows.