Pls help with question 5 will mark braineliest

Last year there were 1070 students.

Step-by-step explanation:

Since 856 students represent a 20% drop from last year's number of students, then 856 students is 80% of last year's number.

80% of x = 856

0.8x = 856

x = 856/0.8

x = 1070

Last year there were 1070 students.

1070

Step-by-step explanation:

p = previous years populations

p - p 20% = 856

p - .20*p = 856

Combine like terms

.80p = 856

Divide each side by .8

.80p/.8 - 856/.8

p =1070

-362

step-by-step explanation:

(12)(4)+2(12)-34(12)+2(12)-3

  \/         \/         \/         \/

  48 +   24 -   408 + 24 - 3

      \   /               \   /

          72     -     432 - 3 = -363