Answer:
A. 5x = 45
Step-by-step explanation:
To check, substitute 9 for x in each equation.
A. 5*9 = 45
B. 2*9 ≠ 20
C. 4 + 9 ≠ 12
D. 9 +7 ≠ 26
Answer:
D.Z
u see how they have line in between as well, shows that they are going by 5 so 2.0 and then 2.5
and if it was asking for -2.5 which is negative two point five, you would choose A.U
(3.48 x 10^3) x (9 x 10^4) + (9.9 x 10^8)
(3480) x (90000) + (990000000)
(313200000) + (990000000)
1303200000
1.3032 x 10^9
Hope this helps!
Answer:
b
Step-by-step explanation: