In the pyramid above, each triangular face has the same area, and the base MNPQ is
a square that measures 8 centimeters on
each side. If the length of RS = 6
centimeters, what is the surface area of
the pyramid excluding the base?
A. 48 sq cm
B. 96 sq cm
C. 128 sq cm
D. 160 sq cm

Arley is building a model of a city map. in one part of the city, three roads form a right triangle, which harley draws as triangle abc, with the following measures: m∠b=90° and m∠a=30°. in his scale model, the hypotenuse of triangle abc, ac¯¯¯¯¯¯¯¯, has a length of 817−−√ cm. what is the value of a (the length of bc¯¯¯¯¯¯¯¯)?

Solve the equation for x.3(6x - 1) = 12 i've tried doing the math and i can't find out what i'm doing wrong

1) you deposit $2,500 in an account that earns 4% simple interest. how much do you earn in eight years?