Please help must show work

29. A) 8+0.40x≤12

B) x≤10

C) a number line with points at 0 and 10, filled in

30) A) 2x≤18

B) x≤9

C) a number line with points at 0 and 9, filled in.

Step-by-step explanation:

29. A) 8+0.40x≤12

B) 0.40x≤12-8

0.40x≤4

x≤10 They can have up to 10 toppings

C) a number line with points at 0 and 10, filled in

30) A) 2x≤18

B) x≤18÷2

x≤9 He can drive up to 9 hours.

C) a number line with points at 0 and 9, filled in.

answer:   b

step-by-step explanation:

x2 = 16

x can not be a negative number because 16 is positive

the only answer would be positive 8  

150.6

all i did was i multiplied 5.02 by 30