39.99 + 0.13m < = 44
0.13m < = 44 - 39.99
0.13m < = 4.01
m < = 4.01 / 0.13
m < = 30.84......so the most that he can send or receive is 30
Answer:
its y= -0.3(x-2)^2-5
Step-by-step explanation:
Answer: 8%
Step-by-step explanation:
9514 1404 393
Explanation:
Expand the right side using the distributive property, then collect terms.
x² -y² = (x -y)(x +y)
= (x)(x +y) -y(x +y)
= x² +xy -yx -y²
= x² +(xy -xy) -y²
= x² -y² . . . . . . . . . . as required