For task card number 2. I got 43
Because:
Y= 7-9x. X=-4
7-9x4
7-(-36)
=43
Answer:
8.6792 × 10 4 (I don't know how to make the four smaller but its 10 to the power of 4).
Step-by-step explanation:
8.6792 × 10 4. is the scientific notation
Elga’s age is 40 and Alvin’s age is 54