Answer: B
Step-by-step explanation: 3 x 2.5 is 7.5 and the same can be done for the rest.
The third option
Hope this helps love!
Answer:
square root of 5 squared minus 4 squared
Step-by-step explanation:
a^2 + b^2 = c^2
c^2 - b^2 = a^2
5^2 - 4^2 = a^2
25 - 16 = a^2
9 = a^2
√
√9=a
a=3
or
a= √25-16
a= √9
a=3
Hope this helps!