89.10-[(1.20x31)+(4.90+7)]

65.3

Step-by-step explanation:

89.10 - [(1.20 × 31)+ (4.90 + 7)]

89.10 - [37.2 + 11.9]

89.10 - 23.8

= 65.3

the answer is b.)

< 1=< 2

b. 6

step-by-step explanation:

we are given the table representing an exponential function.

we can see from the table that, as x is increasing, the value of y is increasing in the power of 6.

i.e. the following relation is obtained,

x = 1, y = 6

x = 2, y = 36 =

x = 3, y = 216 =

x = 4, y = 1296 =

x = 5, y = 7776 =

so, the geometric series obtained is .

thus, the common ratio is given by = = 6.

hence, the common ratio is 6.