The ACT Math section is getting harder! More advanced concepts such as vectors, permutations, matrices, and conics are appearing in more and more questions on ACT exams.

What is the average of 4x+5, 7x-6, and 8x+2?

In the geometric sequence (9,18,36,72) where b1 =9, what is the value of b12?

What is the average of the first 50 positive integers?

A circuit is a complete path that electricity flows through. There is a source of electricity (battery). Conductors are the materials that allow electric current to pass through them easily. Conductors like the positive and negative ends of a battery. In a closed circuit, the electricity flows without any interruptions. Ohm’s Law: Voltage (V); Current[…]

– Cell wall: surrounds/protects cell (only in plant cells) – Cell membrane: controls movement of materials into and out of the cell (active/passive transport) – Cytoplasm: watery area of movement – Mitochondria: produces/supplies energy – Chloroplasts: contain chlorophyll (capture sunlight) [only in plants] – Vacuoles: store food/water/chemicals – Nucleus: regulars.controls cell activities – Nuclear membrane:[…]