Pls help with questions 7-10

Identify an equation in point slope form for the line perpendicular to y=3x+5 that passes through (4,-1)

Write the equation in logarithmic form e^x=403.429

Afarm is to be built in the shape of quadrilateral abcd, as shown below. all four sides are equal. a rhombus abcd is shown with diagonal ac equal to 15.5 feet and diagonal bd equal to 13.2 feet. what is the area of the farm? pleas only pick from the 4 below 62 square feet 52.8 square feet 57.4 square feet 102.3 square feet