1 tenth + 5 hundredth =

0.15

Step-by-step explanation:

123.45

i shall give you what each place value of each number

1 hundred ( 100)

2 tens ( 20)

3 units (3)

4 tenths (0.45)

5 hundredth (0.05)

hence :

one tenth is 0.1

5 hundredth is 0.05

0.1 + 0.05

option 1 is correct.

step-by-step explanation:

y varies inversely with x and constant of variation is 4

the equation will be:

y = k/x

where k =4 so,

y = 4/x

if we put values of x of option 1 in the above equation and find values of y

y = 4/-2 => y =-2

y = 4/-1 => y = -4

y = 4/1 => y = 4

y = 4/2 => y =2

so, all the values of x and y are correct.

if we put values of x given in other options and find value of y we cannot find whole table satisfying the equation.

hence option 1 is correct.