Simplify this expression 5+10÷ 5 a}3 b}7 c}10 d}15

Using PEMDAS which I assume you probably went over (If not I'll explain it if you need me to) start with the division part first before the addition.

Just to make sure though for the question, there is no parentheses around 5+10 correct? If not then your final answer should be 7 which is B.

step-by-step explanation:

to find if any function is an inverse of the other, put the first equation in as x in the next one. then simplify and solve. if at the end you get the statement y = x, then it is an inverse. if you get anything else, it is not.

d

step-by-step explanation:

i used the pitagoras theoreme