1=5-4 because you have to substitute x and y (x,y) or (5,1)
Answer:
the asnwer is C
Step-by-step explanation:
Answer:
• for x = 2a√t, make t the subject:

• then find y:

All you have to do is do the distributive property. So, for the first one you would do 5 times x which equals 5x and then you would do 5 times 4 which equals twenty. All you are left with is the addition sign. Your full equation now would be 5x+20