Answer:
12+10+5
Step-by-step explanation:
I believe this is right
Answer:
128
Step-by-step explanation:
Billy has 55 stamps and his brother Tommy has 73. Add 73 and 55 together. 55+73=128
Answer:

Step-by-step explanation:
The inverse operation for an exponential (
) is the logarithm:
.
Umm, I think it is the first one.
D. 75 cm
Step-by-step explanation:
fill in the y with 20.5, so you get 20.5=0.3x-2. Add the 2 to the 20.5 so you get 22.5=0.3x. Divide both by 0.3 to get 75=x.
sorry if it's a bd explanation, hope this helps :)