Answer:
See below.
Step-by-step explanation:
1. x•y+9•X-3 when x=7 and y=10
(7)•(10)+9•(7)-3
70 + 63 - 3
70 + 60
= 130
2: Evaluate 140=(x+9)+(x+4)2 when x=1
140=(x+9)+(x+4)2
140 = (1 + 9) + (1 + 4)2
140 = 10 + 10 = 20 Not true. There must be something incorrect with the question.
Is the (x+4)2 supposed to be (x+4)^2?
140 = (1 + 9) + (1 + 4)^2 ?
Still not true.
Is the question to find the value of X?
