Need help!!! it's middle skool stuff so prolly everyone gets them cuz... ppl here are SMARTTTTTTTTTTTTTTTT someone plz help :( i also need step by step explanation!! thanksss

Need help its middle skool stuff so prolly everyone gets them cuz ppl here are SMARTTTTTTTTTTTTTTTT someone plz help i also need step by step explanation thanks class=

Respuesta :

Answer:

87

Step-by-step explanation:

8+7=15

reverse the digits to get 78.

8x6=48

48+30=78

(There are only 4 two-digit numbers that equal 15.  78, 87, 69, and 96. Only 87 fits these qualifications.)

Answer:

6

Step-by-step explanation: