Find the cardinal number for the following sets A={100, 101, 102, 103,...,123} B= {100, 102, 104,...,250}

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

Which statement accurately explains whether a reflection over the x-axis and a 180° rotation would map figure acb onto itself?

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.