HEY CAN ANYONE PLS ANSWER DIS MATH PROBLEM PLS I RLLY NEED IT

Simplify 15(x - 4)(x -1)-3(x + 4)(x - 1) with steps

Three times the sum of a number and seven is negative thirty-six. what is the number?

Mr. brettler is hanging up a 5-foot tall rectangular welcome sign in the gym. he has drawn a sketch on a coordinate grid. he has the lower vertices of the sign at (9, –3) and (–6, –3). where would the upper vertices be on the grid?