Answer:
=−3
Step-by-step explanation:
=17a+−37−121a+17
=21(a−3)7(−a+3)
=−3
.75
2.25
In order to multiply fractions just multiple the numerator and denominator straight across
Each of the 4 friends spent 15 dollars so all you need to do is multiply 4 by 15. 4x15=60