You build and sell toy boxes. so far, you have built 15 toy boxes that you will sell for $60 each. how much money will you have if you build 20 more toy boxes and sell all of them? clear check $920 $1,200 $1,215 $2,100

Is δ pmr similar to δ smn ? if so, which postulate or theorem proves these two triangles are similar?

The average human heart beats 1.15 \cdot 10^51.15⋅10 5 1, point, 15, dot, 10, start superscript, 5, end superscript times per day. there are 3.65 \cdot 10^23.65⋅10 2 3, point, 65, dot, 10, start superscript, 2, end superscript days in one year.how many times does the heart beat in one year? write your answer in scientific notation, and round to one decimal place.

What is the missing step in this proof ?