Umm what is red and blue

Solve the equation x/4 - 5= -8 -27 -12 -7 12

Find the area of the regular hexagon if a side is 20 cm.

Ascientist has 50 grams of a radioactive element. the amount of radioactive element remaining after t days can be determined using the equation (1) after two days the scientist receives a second shipment of 50 grams of the same element. the equation used to represent the amount of shipment 2 remaining after t days is 10) - 50 which of the following is an equivalent form of the expression for the amount remaining in shipment 2? what’s the answer?