Answer key you buy x packs of pencils, twice as many packs of erasers, and three times as many rolls of tape. write an expression in simplest form for the total amount of money you spent. socratic. org

C(x)  = x*(p + 2e + 3r)

Step-by-step explanation:

Let's call the price of one pack of pencils as "p", the price of on pack of erase as "e" and the price of one roll of tape as "r".

The total packs of pencils: x

The total packs of erasers: 2x

The total rolls of tape: 3x

The total price of packs of pencils: xp

The total price of packs of erasers: 2xe

The total price of rolls of tape: 3xr

Let's call the total of money spent as C, so:

C(x) = xp + 2xe + 3xr

C(x)  = x*(p + 2e + 3r)

b. the decimal could be two-tenths.

step-by-step explanation:

x = -4

step-by-step explanation:

- 20 - 4(x + 3) = 4x

=> -20 - 4x - 12 = 4x

=> - 32 -4x = 4x

=> -32 = 4x + 4x

=> - 32 = 8x

=> -32/8 = x

=> -4 = x