Last week bananas costed 0.79 per pound this week they cost 0.89 per pound (need the percent change)

  12.7% increase

Step-by-step explanation:

The percentage change can be found from ...

  (change)/(original) × 100%

  (0.89 -0.79)/(0.79) × 100% = 10/79 × 100% ≈ 12.7% . . . increase

34.5 cm

step-by-step explanation:

generally for a circular segment of angle, θ° and radius r

arc length

= (θ/360) x circumference

= (θ/360) x 2πr

in our case, θ = 60°, π=3.142 and r = 33 cm

substitute into above formula

arc length

= (60/360) x 2(3.142)( 33) = 34.5 cm

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.