Tony is using these numbers to make a new number. 12
1
4
7
• He can use brackets, +, -, * and + as often as he wishes.
• He cannot use any number more than once.
• He cannot use powers.
• He cannot put numbers together, eg he can't use 147.
What is the biggest number he can make - show how he can make this number.

wishes.

• He cannot use any number more than once.

• He cannot use powers.

• He cannot put numbers together, eg he can't use 147.

What is the biggest number he can make - show how he can make this number.

420

Step-by-step:

the only numbers that we can use are 12, 1, 4 and 7

we can use brackets,-,+,×, as often as we want

12 and 7 are the largest numbers there so we can times them... that leaves 4 and 1 therefore we can add them and times the result by (12×7)

so...

(12×7)×(4+1)

12×7= 84

and...

4+1=5

84×5= 420

thus...the largest number he can make is 420

Hope this helped you- have a good day bro cya)

answer: i don't understand. what are the options

step-by-step explanation:

the system of inequalities is

step-by-step explanation:

step 1

find the equation of the dashed line

we have the points

(0,0) and (3,1)

the line passes through the origin, so, is a direct variation

find the slope

the equation of the dashed line is

the solution of the inequality a s the shaded area above the dashed line

therefore

the equation of the inequality a is

step 2

find the equation of the solid line

we have the points

(4,0) and (0,4)

find the slope

the equation of the solid line is

the solution of the inequality b s the shaded area below the solid line

therefore

the equation of the inequality b is

step 3

the system of inequalities is